The Prophet said, "Allah said: The Fast is for Me and I will give the reward for it, as he (the one who observes the fast) leaves his sexual desire, food and drink for My Sake. Fasting is a screen (from Hell) and there are two pleasures for a fasting person, one at the time of breaking his fast, and the other at the time when he will meet his Lord. And the smell of the mouth of a fasting person is better in Allah's Sight than the smell of musk." (See Hadith No. 128, Vol. 3).

Allah's Apostle said, "Allah said, 'All the deeds of Adam's sons (people) are for them, except fasting which is for Me, and I will give the reward for it.' Fasting is a shield or protection from the fire and from committing sins. If one of you is fasting, he should avoid sexual relation with his wife and quarreling, and if somebody should fight or quarrel with him, he should say, 'I am fasting.' By Him in Whose Hands my soul is' The unpleasant smell coming out from the mouth of a fasting person is better in the sight of Allah than the smell of musk. There are two pleasures for the fasting person, one at the time of breaking his fast, and the other at the time when he will meet his Lord; then he will be pleased because of his fasting."

Ibn Muhayriz said: A man from Banu Kinanah, named al-Makhdaji, heard a person called AbuMuhammad in Syria, saying: The witr is a duty (wajib).

Al-Makhdaji said: So I went to Ubadah ibn as-Samit and informed him.

Ubadah said: AbuMuhammad told a lie. I heard the Messenger of Allah (saws) say: There are five prayers which Allah has prescribed on His servants. If anyone offers them, not losing any of them, and not treating them lightly, Allah guarantees that He will admit him to Paradise. If anyone does not offer them, Allah does not take any responsibility for such a person. He may either punish him or admit him to Paradise.

Yahya related to me from Malik from Yahya ibn Said from Muhammad ibn Yahya ibn Habban from Ibn Muhayriz that a man from the Kinana tribe called al-Mukhdaji heard a man in Syria known as Abu Muhammad saying, "The witr is obligatory (fard)." Al-Mukhdaji said, "I went to Ubada ibn as-Samit and presented myself to him as he was going to the mosque, and told him what Abu Muhammad had said. Ubada said that Abu Muhammad had lied and that he had heard the Messenger of Allah, may Allah bless him and grant him peace, say, 'Allah the Majestic and Mighty has written five prayers for mankind, and whoever does them and does not waste anything of them by making light of what is due to them, there is a pact for him with Allah that He will admit him into the Garden.Whoever does not do them, there is no pact for him with Allah. If He wishes, He punishes him, and if He wishes, He admits him into the Garden.' "

We were at a place which was a thoroughfare for the people, and the caravans used to pass by us and we would ask them, "What is wrong with the people? What is wrong with the people? Who is that man?. They would say, "That man claims that Allah has sent him (as an Apostle), that he has been divinely inspired, that Allah has revealed to him such-and-such." I used to memorize that (Divine) Talk, and feel as if it was inculcated in my chest (i.e. mind) And the 'Arabs (other than Quraish) delayed their conversion to Islam till the Conquest (of Mecca). They used to say." "Leave him (i.e. Muhammad) and his people Quraish: if he overpowers them then he is a true Prophet. So, when Mecca was conquered, then every tribe rushed to embrace Islam, and my father hurried to embrace Islam before (the other members of) my tribe. When my father returned (from the Prophet) to his tribe, he said, "By Allah, I have come to you from the Prophet for sure!" The Prophet afterwards said to them, 'Offer such-and-such prayer at such-and-such time, and when the time for the prayer becomes due, then one of you should pronounce the Adhan (for the prayer), and let the one amongst you who knows Qur'an most should, lead the prayer." So they looked for such a person and found none who knew more Qur'an than I because of the Qur'anic material which I used to learn from the caravans. They therefore made me their Imam ((to lead the prayer) and at that time I was a boy of six or seven years, wearing a Burda (i.e. a black square garment) proved to be very short for me (and my body became partly naked). A lady from the tribe said, "Won't you cover the anus of your reciter for us?" So they bought (a piece of cloth) and made a shirt for me. I had never been so happy with anything before as I was with that shirt.