Musannaf Ibn Abi Shayba 9:1585

Abu Bakr narrated to us, he said: Hafs bin Ghiyath narrated to us, from al-Hajjaj, from al-Rukayn, that al-Mughira bin Shu'bah proposed to a woman while he was her guardian, and with him were other guardians like him. So he ordered some of her guardians to marry her to him.