It is narrated on the authority of Amirul Mu'minin, Abu Hafs 'Umar bin al-Khattab, radiyallahu 'anhu, who said: I heard the Messenger of Allah, sallallahu 'alayhi wasallam, say:

Actions are judged by motives (niyyah), so each man will have what he intended. Thus, he whose migration (hijrah) was to Allah and His Messenger, his migration is to Allah and His Messenger; but he whose migration was for some worldly thing he might gain, or for a wife he might marry, his migration is to that for which he migrated.

Also on the authority of 'Umar, radiyallahu 'anhu, who said:

While we were one day sitting with the Messenger of Allah, sallallahu 'alayhi wasallam, there appeared before us a man dressed in extremely white clothes and with very black hair. No traces of journeying were visible on him, and none of us knew him. He sat down close by the Prophet, sallallahu 'alayhi wasallam, rested his knee against his thighs, and said, O Muhammad! Inform me about Islam." Said the Messenger of Allah, sallallahu 'alayhi wasallam, "Islam is that you should testify that there is no deity save Allah and that Muhammad is His Messenger, that you should perform salah (ritual prayer), pay the zakah, fast during Ramadan, and perform Hajj (pilgrimage) to the House (the Ka'bah at Makkah), if you can find a way to it (or find the means for making the journey to it)." Said he (the man), "You have spoken truly." We were astonished at his thus questioning him and telling him that he was right, but he went on to say, "Inform me about iman (faith)." He (the Messenger of Allah) answered, "It is that you believe in Allah and His angels and His Books and His Messengers and in the Last Day, and in fate (qadar), both in its good and in its evil aspects." He said, "You have spoken truly." Then he (the man) said, "Inform me about Ihsan." He (the Messenger of Allah) answered, " It is that you should serve Allah as though you could see Him, for though you cannot see Him yet He sees you." He said, "Inform me about the Hour." He (the Messenger of Allah) said, "About that the one questioned knows no more than the questioner." So he said, "Well, inform me about the signs thereof (i.e. of its coming)." Said he, "They are that the slave-girl will give birth to her mistress, that you will see the barefooted ones, the naked, the destitute, the herdsmen of the sheep (competing with each other) in raising lofty buildings." Thereupon the man went off. I waited a while, and then he (the Messenger of Allah) said, "O 'Umar, do you know who that questioner was?" I replied, "Allah and His Messenger know better." He said, "That was Jibril. He came to teach you your religion.

On the authority of Abu 'Abd al-Rahman 'Abdullah bin 'Umar bin al-Khattab, radiyallahu 'anhuma, who said: I heard the Messenger of Allah, sallallahu 'alayhi wasallam, say:

Islam has been built upon five things - on testifying that there is no god save Allah, and that Muhammad is His Messenger; on performing salah; on giving the zakah; on Hajj to the House; and on fasting during Ramadhan.

Abu 'Abd al-Rahman 'Abdullah bin Mas'ud, radiyallahu 'anhu, reported: The Messenger of Allah, sallallahu 'alayhi wasallam, the most truthful, the most trusted, told us:

Verily the creation of any one of you takes place when he is assembled in his mother's womb; for forty days he is as a drop of fluid, then it becomes a clot for a similar period. Thereafter, it is a lump looking like it has been chewed for a similar period. Then an angel is sent to him, who breathes the ruh (spirit) into him. This Angel is commanded to write Four decrees: that he writes down his provision (rizq), his life span, his deeds, and whether he will be among the wretched or the blessed.

I swear by Allah - there is no God but He - one of you may perform the deeds of the people of Paradise till there is naught but an arm's length between him and it, when that which has been written will outstrip him so that he performs the deeds of the people of the Hell Fire; one of you may perform the deeds of the people of the Hell Fire, till there is naught but an arm's length between him and it, when that which has been written will overtake him so that he performs the deeds of the people of Paradise and enters therein.

It is narrated on the authority of the Mother of the Believers, Umm 'Abdullah 'Aishah, radiyallahu 'anha, that the Messenger of Allah, sallallahu 'alayhi wasallam, said:

Whosoever introduces into this affair of ours (i.e. into Islam) something that does not belong to it, it is to be rejected.

On the authority of Abu 'Abdullah al-Nu'man bin Bashir, radiyallahu 'anhu, who said: I heard the Messenger of Allah, sallallahu 'alayhi wasallam, say:

Truly, what is lawful is evident, and what is unlawful is evident, and in between the two are matters which are doubtful which many people do not know. He who guards against doubtful things keeps his religion and honour blameless, and he who indulges in doubtful things indulges in fact in unlawful things, just as a shepherd who pastures his flock round a preserve will soon pasture them in it. Beware, every king has a preserve, and the things Allah has declared unlawful are His preserves. Beware, in the body there is a flesh; if it is sound, the whole body is sound, and if it is corrupt, the whole body is corrupt, and behold, it is the heart.

On the authority of Tamim Al-Dari that the Prophet, sallallahu 'alayhi wasallam, said:

"Religion is nasihah." We said: "To whom?" The Prophet, sallallahu 'alayhi wasallam, said: "To Allah and His Book, and His messenger, and to the leaders of the Muslims and their common folk."

Abdullah bin Omar narrated that the messenger of Allah, sallallahu 'alayhi wasallam, said:

I have been ordered to fight against people until they testify that there is no god but Allah and that Muhammad is the messenger of Allah and until they perform the prayers and pay the zakat, and if they do so they will have gained protection from me for their lives and property, unless [they do acts that are punishable] in accordance with Islam, and their reckoning will be with Allah the Almighty.

Abu Hurairah 'Abd al-Rahman bin Sakhr, radiyallahu 'anhu, reported: I heard the Messenger of Allah, sallallahu ‘alayhi wasallam, say:

“Avoid that which I forbid you to do and do that which I command you to do to the best of your capacity. Verily the people before you were destroyed only because of their excessive questioning and their disagreement with their Prophets.”

Abu Hurairah, radiyallahu 'anhu, reported that the Messenger of Allah, sallallahu ‘alayhi wasallam, said:

“Verily Allah the Exalted is pure. He does not accept but that which is pure. Allah commands the believers with what He commanded the Messengers. Allah the Almighty has said: "O you Messengers! Eat of the good things and act righteously" [23:51-53]. And Allah the Almighty also said: "O you who believe! Eat of the good things that We have provided you with" [2:167-172].
Then he (the Prophet) mentioned (the case of) the man who, having journeyed far, is dishevelled and dusty and who stretches out his hands to the sky (saying): "O Lord! O Lord!" (while) his food was unlawful, his drink was unlawful, his clothing was unlawful, and he is nourished with unlawful things, so how can he be answered?”

On the authority of Abu Muhammad al-Hasan bin Ali bin Abi Taib, the grandson of the Messenger of Allah, sallallahu ëalayhi wasallam, and who is dearest to him, radiyallahu ëanhuma, who said: ?I committed to memory from the Messenger of Allah, sallallahu ëalayhi wasallam, (the following words):

Leave that about which you are in doubt for that about which you are in no doubt.

On the authority of Abu Hurairah, radiyallahu 'anhu, who said : The Messenger of Allah, sallallahu 'alayhi wasallam, said:

"Part of the perfection of someone's Islam is his leaving alone that which does not concern him."

Abu Hamzah Anas bin Malik, radiyallahu 'anhu, who was the servant of the Messenger of Allah, sallallahu 'alayhi wasallam, reported that the Prophet, sallallahu 'alayhi wasallam, said:

"None of you truly believes (in Allah and in His religion) until he loves for his brother what he loves for himself"

On the authority of Ibn Mas’ud, radiyallahu anhu, who said: The Messenger of Allah, sallallahu ‘alayhi wasallam, said:

”The blood of a man who is a Muslim is not lawful (i.e. cannot be lawfully shed), save if he belongs to one of three (classes): a married man who is an adulterer; life for a life (i.e. for murder); one who is a deserter of his religion, abandoning the community.”

Abu Hurairah, radiyallahu 'anhu, reported that the Messenger of Allah, sallallahu 'alayhi wasallam, said:

"Let whosoever believes in Allah and in the Last Day either speak good or be silent. Let whosoever believes in Allah and in the Last Day honour his neighbour. Let whosoever believes in Allah and in the Last Day honour his guest."

Abu Ya'la Shaddad ibn Aus, radiyallahu 'anhu, reported that the Messenger of Allah, sallallahu 'alayhi wasallam, said:

"Verily, Allah has enjoined excellence (ihsan) with regard to everything. So, when you kill, kill in a good way; when you slaughter, slaughter in a good way; so everyone of you should sharpen his knife, and let the slaughtered animal die comfortably."

Abu Dhar Jundub bin Junadah and Abu Abdul Rahman Mu’adh bin Jabal, radiyallahu anhuma, reported that the Messenger of Allah, sallallahu 'alayhi wasallam, said:

“Fear Allah wherever you may be; follow up an evil deed with a good one which will wipe (the former) out, and behave good-naturedly towards people.”

Abu al-‘Abbas ‘Abdullah bin ‘Abbas, radiyallahu anhuma, reported: One day I was behind the Prophet, sallallahu ‘alayhi wasallam, and he said to me:

"O young man, I shall teach you some words [of advice] : Be mindful of Allah, and Allah will protect you. Be mindful of Allah, and you will find Him in front of you. If you (have need to) ask, ask of Allah; and if you seek help, seek help from Allah. Know that even if the Nation (or the whole community) were to gather together to benefit you with something, they would not benefit you with anything except that which Allah has already recorded for you, and that if they gather together to harm you with something, they would not be able to harm you with anything except that which Allah has already recorded against you. The pens have been lifted and the pages have dried."

Abu Mas'ud 'Uqbah bin 'Amr al-Ansari al-Badri, radiyallahu 'anhu, reported that the Messenger of Allah, sallallahu 'alayhi wasallam, said:

"Among the things that people have found from the words of the previous prophets was: 'If you feel no shame, then do as you wish."

On the authority of Abu 'Amr, though others call him Abu 'Amrah Sufyan bin 'Abdullah, radiyallahu anhu, who said:

I said: "O Messenger of Allah, tell me something about Islam which I could not ask anyone about save you." He answered: "Say: 'I believe in Allah', and then stand firm and steadfast."