Sahih Muslim 6547
صحيح مسلم#6547SahihAbu Huraim reported Allah's Messenger (ﷺ) as saying The deeds of people would be presented every week on two days, viz. Monday and Thursday, and every believing servant would be granted pardon except the one in whose (heart) there is rancour against his brother and it would he said:Leave them and put them off until they are turned to reconciliation
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 45:45