Sahih Muslim 3412
صحيح مسلم#3412SahihThis hadith has been narrated on the authority of Isma'il with the same chain of transmitters (and the words are):" We were young, so we said: Allah's Messenger, should we not have ourselves castrated? But he (the narrator) did not say; We were on an expedition
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: 16:15