We used to participate in the holy wars carried on by the Prophet (ﷺ) and we had no women (wives) with
us. So we said (to the Prophet (ﷺ) ). "Shall we castrate ourselves?" But the Prophet (ﷺ) forbade us to do that
and thenceforth he allowed us to marry a woman (temporarily) by giving her even a garment, and then
he recited: "O you who believe! Do not make unlawful the good things which Allah has made lawful
for you."
Sahih al-Bukhari Book 65, Hadith 137