Sahih Muslim 238
صحيح مسلم#238SahihIt is reported on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) said:A person who believes in Allah and the Last Day never nurses a grudge against the Ansar
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: 1:144