Sa'd said: “The Messenger of Allah disapproved of Uthman bin Maz'un's desire to remain celibate; if he had given him permission, we would have gotten ourselves castrated.” (Using translation from Ibn Mājah 1848)
«لَقَدْ رَدَّ رَسُولُ اللهِ ﷺ عَلَى عُثْمَانَ وَهُوَ ابْنُ مَظْعُونٍ التَّبَتُّلَ وَلَوْ أَذِنَ لَهُ لَاخْتَصَيْنَا»