I came to the Prophet (ﷺ) when he was in the mosque, and he said to me, "Perform two Rak'ah prayer."[Al-Bukhari and Muslim].

The Prophet (ﷺ) said, "The five daily (prescribed) Salat, and Friday (prayer) to the next Friday (prayer), and the fasting of Ramadan to the next Ramadan, is expiation of the sins committed in between them, so long as major sins are avoided."[Muslim].

The Messenger of Allah (ﷺ) said while talking about the merits of Friday, "There is a time on Friday at which a Muslim, while he (or she) is performing Salat and is supplicating, will be granted whatever he (or she) is supplicating for." And he (ﷺ) pointed with his hand to indicate that this period of time is very short.[Al-Bukhari and Muslim].

The Prophet (ﷺ) kept standing (in prayer) so long that the skin of his feet would crack. I asked him: "Why do you do this, while you have been forgiven of your former and latter sins?" He said, "Should I not be a grateful slave of Allah?"[Al-Bukhari and Muslim].

The Prophet (ﷺ) said, "Salat during the night should consist of pairs of but if you fear that morning is near, then pray one Rak'ah as Witr."[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) used to leave off observing Saum (fasting) during a month until we thought that he would not observe Saum at all during it; and (sometimes) he would observe Saum till we began to think that he would not omit any day of that month. If one wished to see him performing Salat during the night, he could do that; and if one wished to see him sleeping at night, he could do that.[Al- Bukhari].

The Messenger of Allah (ﷺ) said, "The Salat which is dearest to Allah is that of (Prophet) Dawud; and As-Saum (the fasting) which is dearest to Allah is that of (Prophet) Dawud. He used to sleep half the night, get up to perform Salat for one-third of it, then sleep through the remaining one-sixth of it; and he used to observe Saum on alternative days."[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "May Allah show mercy to a man who gets up during the night and performs Salat, awakens his wife to pray and if she refuses, he sprinkles water on her face (to make her get up). May Allah show mercy to a woman who gets up during the night and performs Salat, awakens her husband for the same purpose; and if he refuses, she sprinkles water on his face."[Abu Dawud].

The Messenger of Allah (ﷺ) said, "When a man awakens his wife during the night and they both perform two Rak'ah Salat together, they are recorded among the men and women who celebrate remembrance of Allah."[Abu Dawud].

The Messenger of Allah (ﷺ) said, "When anyone of you stands up for Salat at night and finds it difficult to recite the Qur'an accurately and he is unaware of what he is reciting, he should go back to sleep."[Muslim].

The Messenger of Allah (ﷺ) said, "He who observes optional prayer (Tarawih prayers) throughout Ramadan, out of sincerity of Faith and in the hope of earning reward will have his past sins pardoned."[Al- Bukhari and Muslim].

The Messenger of Allah (ﷺ) used to seclude himself (in the mosque) during the last ten nights of Ramadan. He would say, "Search for Lailat-ul-Qadr (Night of Decree) in the last ten nights of Ramadan."[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "Had I not thought it difficult for my Ummah, I would have commanded them to use the Miswak (tooth-stick) before every Salat."[Al-Bukhari and Muslim].

Whenever the Messenger of Allah (ﷺ) got up (from sleep), he would rub his teeth with Miswak (tooth-stick).[Al-Bukhari and Muslim].

We used to prepare for the Messenger of Allah (ﷺ) a Miswak (tooth-stick) and the water for making Wudu'. Whenever Allah wished to awaken him from sleep at night, he (ﷺ) would brush his teeth with Miswak, make Wudu', and perform Salat.[Muslim].

I heard the Messenger of Allah (ﷺ) saying, "Every night there is a special time during which whatever a Muslim asks Allah of any good relating to this life or the Hereafter, it will be granted to him; and this moment comes every night."[Muslim].

Whenever the Messenger of Allah (ﷺ) stood for Salat at night, he would start his prayer with two brief Rak'ah.[Muslim].

If the Messenger of Allah (ﷺ) missed his night (Tahajjud) Salat because of indisposition or the like, he would perform twelve Rak'ah during the day.[Muslim].

The Messenger of Allah (ﷺ) used to urge (the people) to perform (optional Tarawih) prayer at night during the month of Ramadan. He did not order them or make it obligatory on them. He (ﷺ) said, "Whosoever performs (optional Tarawih) prayers at night during the month of Ramadan, with Faith and in the hope of receiving Allah's reward, will have his past sins forgiven."[Muslim].

Some of the Companions of the Prophet (ﷺ) saw Lailat-ul-Qadr (Night of Decree) in their dreams in the last seven nights of Ramadan, whereupon the Messenger of Allah (ﷺ) said, "I see that your dreams all agree upon the last seven nights. Whosoever seeks it, let him seek it in the last seven nights."[Al-Bukhari and Muslim].