Umm Salama said, “ Messenger of Allah , you continue to be afflicted annually with pain from the poisoned sheep you ate.” He replied, “I am afflicted by nothing due to it which was not decreed for me while Adam was still a lump of clay.” Ibn Majah transmitted it.

Ibn ‘Umar said that his father ‘Umar b. al-Khattab used to pray during the night what Allah wished, then during the latter part of the night he woke his family for prayer saying to them, “Come to prayer.” Then he would recite this verse, “And command your family to observe the prayer, and be constant in it. We do not ask you for provision; We provide you, and the issue pertains to piety” (Al-Qur'an; 20

Anas said, “Allah's Messenger used to break his fast during a month so that we imagined he had not fasted during it at all, and he fasted so that we imagined he had not broken it. You did not wish to see him praying during the night without doing so, or sleeping without doing so.” Bukhari transmitted it.

‘A’isha reported Allah's Messenger ﷺ as saying, “The acts most pleasing to Allah are those which are done most continuously, even if they amount to little.” (Bukhari and Muslim.)

She reported Allah's Messenger ﷺ as saying; “Choose such actions as you are capable of performing, for Allah does not grow weary till you do.” (Bukhari and Muslim.)

Anas reported Allah's Messenger ﷺ as saying, “One should pray as long as he is lively, but when he slackens he should stop.” (Bukhari and Muslim.)

‘A'isha reported Allah's Messenger ﷺ as saying, “When one of you dozes while praying he should fall over till he has slept enough, for when one of you prays while dozing he does not know whether he may be asking pardon and vilifying himself. (Bukhari and Muslim.)

Abu Huraira reported Allah's Messenger ﷺ as saying, “The religion is ease, but if anyone overdoes it it gets the better of him; so keep to the right course, approximate to perfection, rejoice, and ask help in the morning, the evening, and some of the latter part of the night.” Bukhari transmitted it.

‘Umar reported Allah's Messenger ﷺ as saying, “Should anyone fall asleep and fail to recite his portion of the Qur’an or a part of it, if he recites it between the dawn and the noon prayer it will be recorded for him as though he had recited it during the night.” Muslim transmitted it.

‘Imran b. Husain reported Allah's Messenger ﷺ as saying, “Pray standing, but if you are unable, do it sitting; and if you are unable to do that, do it lying on your side.” Bukhari transmitted it.

He said he asked the Prophet (ﷺ) about a man who prays sitting, and he replied, “If he prays standing that is more excellent; but one who prays sitting has half the reward of one who stands, and one who prays lying down has half the reward of one who sits.” Bukhari transmitted it.