Allah's Messenger (ﷺ) forbade `Uthman bin Maz'un to abstain from marrying (and other pleasures) and if he had allowed him, we would have gotten ourselves castrated.
Sahih al-Bukhari Book 67, Hadith 11
← Previous Hadith `Abdur-Rahman bin `Auf came (from Mecca to Medina) and the Prophet (ﷺ) made a bond of brotherhood between him and Sa`d bin Ar-Rabi` Al-Ansari. Al-Ansari had two wives, so he suggested that `Abdur- Rahman take half, his wives and property. `Abdur-Rahman replied, "May Allah bless you with your wives and property. Kindly show me the market." So `Abdur-Rahman went to the market and gained (in bargains) some dried yoghurt and some butter. After a few days the Prophet (ﷺ) saw `Abdur-Rahman with some yellow stains on his clothes and asked him, "What is that, O `Abdur-Rahman?" He replied, "I had married an Ansari woman." The Prophet (ﷺ) asked, "How much Mahr did you give her?" He replied, "The weight of one (date) stone of gold." The Prophet (ﷺ) said, "Offer a banquet, even with one sheep."

Sahih al-Bukhari Book 67, Hadith 10 Next Hadith → The Prophet (ﷺ) prevented `Uthman bin Mazun from that (not marrying), and had he allowed him, we would have got ourselves castrated.

Sahih al-Bukhari Book 67, Hadith 12