The Commander of the Faithful, Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) came to us until he placed his (blessed) foot between me and Sayyida Fatimah (may Allah be pleased with her) and taught us that "when we go to bed, we should say «سبحان الله» 33 times, «الحمد لله» 33 times, and «الله اكبر» 34 times."

Sayyiduna Ali (may Allah be pleased with him) said: I have never abandoned these supplications. A person asked: Not even on the night of Siffin? He replied: Yes, not even on the night of Siffin did I abandon them.