Musannaf Ibn Abi Shayba 9:1305

Waki’ narrated to us, from Abu Hilal, from Muhammad ibn Sirin, who said: ‘Amr ibn Hurayth proposed to ‘Adi ibn Hatim for his daughter, but he refused except on the condition of his [‘Adi’s] judgment. ‘Amr returned and consulted his companions. They said: “Do you want a man from Tayy to pass judgment regarding your marriage contract?” His soul refused, but then he married her on his [‘Adi’s] judgment. Then he departed, and ‘Adi judged [the dowry to be] the Sunnah of the Prophet, may Allah bless him and grant him peace: four hundred and eighty [dirhams]. ‘Amr sent ten thousand [dirhams] to him and said: “Prepare her with it.”