English translation
6671. Narrated Ibn Mas'ūd رضي الله عنه that Allāh's Prophet ﷺ led them in the Zuhr Salāt (prayer) and he offered either more or less Rak'a, and it was said to him, "O Allāh's Messenger! Has the Salāt (prayer) been reduced, or have you forgotten?" He asked, "What is that?" They said, "You have offered so many Rak'a." So he performed with them two more prostrations and said, "These two prostrations are to be performed by the person who does not know whether he has offered more or less (Rak'a) in which case he should seek to follow what is right.(2) And then complete the rest [of the Salāt (prayer)] and perform two extra prostrations."
