Sahih Muslim 6608
صحيح مسلم#6608SahihAbu Huraira reported Allah's Messenger (ﷺ) as saying:It does not seem proper for a Siddiq that he should be an invoker of curse
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: 45:106