Sahih Muslim 235
صحيح مسلم#235SahihIt is reported on the authority of Anas that the Messenger of Allah (may peace and blessings Be upon him) observed:The sign of a hypocrite is the hatred against the Ansar and the sign of a believer is the love for 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: 1:141