Sa'd bin Abi Waqqas (RA) reported: The Messengger of Allah (ﷺ) rejected (the idea) of 'Uthman bin Muz'un living in celibacy (saying): And if he (the Holy Prophet) had given me permission we would have got ourselves castrated.
Hadith ReferenceSahih Muslim / The Book of Marriage / Hadith: 1402