'Ali (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said to me and to Fatimah (May Allah be pleased with her) (Ali's wife and the Prophet's daughter), "When you go to bed, recite: Takbir (Allahu Akbar) thirty-three times and Tasbih (Subhan-Allah) thirty-three times and Tahmid (Al-hamdu lillah) thirty-three times."Another narration is: The Messenger of Allah (ﷺ) said, "Recite Tasbih thirty-four times."Another narration is: The Messenger of Allah(ﷺ) said, "Recite Takbir thirty-four times."[Al-Bukhari and Muslim].

'Ali (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said to me and to Fatimah (May Allah be pleased with her) (Ali's wife and the Prophet's daughter), "When you go to bed, recite: Takbir (Allahu Akbar) thirty-three times and Tasbih (Subhan-Allah) thirty-three times and Tahmid (Al-hamdu lillah) thirty-three times."Another narration is: The Messenger of Allah (ﷺ) said, "Recite Tasbih thirty-four times."Another narration is: The Messenger of Allah(ﷺ) said, "Recite Takbir thirty-four times."[Al-Bukhari and Muslim].

وعن علي رضي الله عنه أن رسول الله صلى الله عليه وسلم قال له ولفاطمة، رضي الله عنهما‏:‏ ‏"‏إذا أويتما إلى فراشكما، أو‏:‏ إذا أخذتما مضجعكما - فكبرا ثلاثًا وثلاثين، وسبحا ثلاثًا وثلاثين، واحمدا ثلاثًا وثلاثين‏"‏ وفي رواية‏:‏ التسبيح أربعًا وثلاثين‏"‏ وفي رواية‏:‏ ‏"‏التكبير أربعًا وثلاثين‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏