When the matter of Uthman bin Mazun arose concerning his abandoning of women, the Messenger of Allah ﷺ sent for him and said, "Uthman, I have not been commanded to adopt monasticism. Have you turned away from my way?"Uthman replied, "No, Messenger of Allah."The Prophet ﷺ said, "It is part of my way that I pray and I sleep, I fast and I eat, and I marry and divorce. Whoever turns away from my way is not of me. Uthman, your family has a right over you, and your own self has a right over you."Saad said, "By Allah, Some men among the Muslims had resolved that if the Messenger of Allah ﷺ approved of Uthman in what he was doing, we would castrate ourselves and renounce marriage."
لما كان من أمر عثمان بن مظعون الذي كان من ترك النساء بعث إليه رسول الله ﷺ فقال: يا عثمان، إني لم أومر بالرهبانية، أرغبت عن سنتي؟ قال: لا، يا رسول الله. قال: إن من سنتي أن أصلي وأنام، وأصوم وأطعم، وأنكح وأطلق، فمن رغب عن سنتي فليس مني، يا عثمان، إن لأهلك عليك حقا، ولنفسك عليك حقا. قال سعد: فوالله لقد كان أجمع رجال من المسلمين على أن رسول الله ﷺ إن هو أقر عثمان على ما هو عليه أن نختصي فنتبتل.
Darimi (2215) narrated it from Muhammad bin Yazid Hazami, who said, Yunus bin Bukayr told us, Ibn Ishaq told me, Zuhri told me, from Saeed bin Musayab, from Saad bin Abu Waqqas, and he mentioned it. Its chain is hasan because of Ibn Ishaq's explicit statement.His words, "tabattul," originally mean cutting off. What is meant here is cutting oneself off from women and giving up marriage, devoting oneself entirely to the worship of Allah. His words, "we would have castrated ourselves," refer to khisa, which is the removal of the two testicles from the scrotum by cutting open its skin.