Nubayh bin Wahb (may Allah have mercy on him) said: Umar bin Ubaydullah bin Ma'mar (may Allah have mercy on him) sent me; he intended to marry his son to the daughter of Shaybah bin Uthman. He invited Aban bin Uthman (may Allah have mercy on him), who was the leader of the pilgrims, and he said: I consider him a Bedouin, because "the muhrim neither contracts his own marriage nor anyone else's." Sayyiduna Uthman (may Allah be pleased with him) narrated this to me from the Messenger of Allah (peace and blessings be upon him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 14199