Musannaf Ibn Abi Shayba 13:3281

Abu Bakr narrated to us, he said: Yahya ibn Abi Za'idah narrated to us, from Sulayman ibn Bilal, from Yahya ibn Sa'id, from Sa'id ibn al-Musayyib, that a man said to him: "I found a stray camel; shall I leave it to roam among my camels?" He said: "No."