It was narrated from Muhammad bin Yusuf, the freed slave of ‘Uthman, from his father Ydsuf, that Muawiyah prayed in front of them, and he stood up during the prayer when he should have sat. The people said TasbIii, but he remained standing, then he prostrated twice while he was sitting, after he completed the prayer. Then he sat on the Minbar and said: “I heard the Messenger of Allah صلی اللہ علیہ وآلہ وسلم say: ‘Whoever forgets something in his prayer, let him prostrate twice like this.” (Hasan)