Sahih Bukhari

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, ""It was said to the children of Israel, 'Enter the gate in prostration and say Hittatun. We shall forgive you your faults.' (7.161) But they changed (Allah's Order) and entered, dragging themselves on their buttocks and said, 'Habbatun (a grain) in a Sha'ratin (hair)