Shu'bah bin al-Hajjaj شعبة بن الحجاج · The Book of Forgetfulness (In Prayer)

The Messenger of Allah (ﷺ) finished praying two rak'ahs,and Dhul-Yadain said to him: "Has the prayer been shortened or did you forget, O Messenger of Allah?" The Messenger of Allah (ﷺ) said: "Is Dhul-Yadain speaking the truth?" The people said: "Yes." So the Messenger of Allah (ﷺ) stood up and prayed two, then he said the takbir and prostrated as usual or longer than that. Then he raised his head, then he prostrated as usual or longer than that, then…

The Messenger of Allah (ﷺ) prostrated twice after the salam on the day of Dhul-Yadain.

"The Messenger of Allah (ﷺ) prayed and did more or less (rak'ahs). When he had said the taslim, it was said: 'O Messenger of Allah, has there been some change concerning the prayer?' He said: 'If there had been some change concerning the prayer, I would have told you. Rather I am a human being and I forget as you forget. If any one of you is not sure about his prayer, let him consider an estimate of what is…

"The Messenger of Allah (ﷺ) prayed and did more or less (rak'ahs). When he had said the salam we said: 'O Messenger of Allah (ﷺ), has there been some change concerning the prayer?' He said: 'Why are you asking?' So we told him what he had done. He turned back toward the Qiblah and prostrated two prostrations of forgetfulness, then he turned to face us and said: 'If there had been some change concerning the prayer I would have told…

The Messenger of Allah (ﷺ) said: "When any one of you gets up and prays, the Shaitan comes to him an confuses him until he does not know how many (Rak'ahs) he prayed. If any one of you notices that, let him prostrate twice when he is sitting."

"The Messenger of Allah (ﷺ) said: 'When the call to prayer is given, the Shaitan runs away breaking wind loudly. When the Tathwb (Iqamah) is completed, he comes back and whispers to a man in his hear, until he does not know how many (rak'ahs) he has prayed. If any one of you notices that, let him prostrate twice.'"

"We said: 'O Messenger of Allah (ﷺ), we know about sending salams upon you, but how should we send salah upon you?' He said: "Say: 'Alahumma salli 'ala Muhammad wa 'ala ali Muhammad, kama sallaita 'ala Ibrahima wa barik 'ala Muhammad kama barakta 'ala ali Ibrahim fil-'alamin, innaka hamidun majid (O Allah, send salah upon Muhammad and upon the family of Muhammad, as You sent salah upon the family of Ibrahim, and send blessings upon Muhammad and upon the family…

"Ammar bin Yasir led the people in prayer and he made the prayer short. It was as if they disliked that, so he said: 'Did I not do bowing and prostration properly?' They said: 'Yes.' He said: 'And I said a supplication that the Prophet (ﷺ) used to say:Allahumma bi 'ilmikal-ghaiba wa qudratika 'alal-khalqi ahini ma 'alimtal-hayata khairan li, wa tawaffani idha 'alimtal-wafata khairan li. Allahumma as'aluka khashyataka fil-ghaibi wash-shahadati wa as'aluka kalimatul-aqua fir-rida'i wal ghadab, wa as'alukal-qasda fil faqr…

"The Messenger of Allah (ﷺ) commanded me to recite Al-Mu'awwidhat following every prayer."

"They were commanded to say the tasbih thirty-three times following the prayer, and to say the tahmid thirty-three times, and to say the takbir thirty-four times, then a man from among the Ansar was told in a dream: 'Did the Messenger of Allah (ﷺ) command you to say the tasbih thirty-three times following the prayer, and to say the tahmid thirty-three times, and to say the takbir thirty-four times?' He said: 'Yes.' 'Instead of that, say each one twenty-five times,…