Sahih al-Bukhari 4479
صحيح البخاري#4479SahihNarrated Abu Huraira:The Prophet (ﷺ) said, "It was said to the children of Israel, 'Enter the gate (of the town), prostrate (in humility) and say: Hittatun (i.e. repentance) i.e. O Allah! Forgive our sins.' But they entered by dragging themselves on their buttocks, so they did something different (from what they had been ordered to do) and said, 'Hittatun,' but added, "A grain in a hair
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:6