Musannaf Ibn Abi Shayba 28:431

Hushaym narrated to us, from Husayn, that a man bought a slave woman on the day of al-Qadisiyyah from the spoils (fay'). She came to him with jewelry that was with her. He went to Sa'd ibn Abi Waqqas and informed him. He (Sa'd) said, "Place it among the spoils of the Muslims."