Musannaf Ibn Abi Shayba 13:1600

Abu Bakr narrated to us, he said: Ibn Mahdi narrated to us, from Hammad ibn Zayd, who said: I asked Ayyub and Ya'la ibn Hakim about a man who gives a garment to a weaver for a third or a fourth [of the profit/product], and they did not see any harm in it.