Sahih Muslim 1559
صحيح مسلم#1559SahihA hadith like this has been transmitted by Khufaf b. Ima' except this that he did not mention (these words):" cursing of unbelievers got a sanctions
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: 5:392