Musannaf Ibn Abi Shayba 35:469

Waki’ narrated to us, from Sufyan, from al-Harith ibn Husayrah al-Azdi, from Sakhr ibn Walid, from ‘Amr ibn Sulay’ (who said): ‘Ali said: "There is no harm in sharecropping for half." And he mentioned that Abu Hanifah used to dislike that.