Musannaf Ibn Abi Shayba 9:667

Abu Bakr narrated to us, from Waki’, from Sufyan, from ‘Amr ibn Qays, from his grandmother, that her father married a woman [giving her] a servant as a dowry. She disputed with her father before Shurayh. He judged in her favor for the servant, and he judged for the woman [the value of the servant].