Musannaf Ibn Abi Shayba 13:1466

Abu Bakr narrated to us, he said: Rawwad ibn al-Jarrah Abu 'Isam al-'Asqalani narrated to us, from al-Awza'i, from Yahya ibn Abi Kathir, he said: I asked al-Hasan, Mujahid, and 'Ikrimah about a man who comes to a man and buys food from his house that is [sold by] estimation (mujazafah), while the owner of the food knows its measurement. They all disliked it.