Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrated that we used to go out for jihad with the Messenger of Allah (peace and blessings be upon him) and our wives were not with us. So we said, "Why don't we castrate ourselves?" But the Messenger of Allah (peace and blessings be upon him) forbade us from doing so, and then he permitted us to marry a woman for a garment (or anything else) as a dowry. Then Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) recited this verse: "O you who believe! Do not make unlawful the good things which Allah has made lawful for you." (Al-Ma'idah 87)