Musannaf Ibn Abi Shayba 13:3450

Abu Bakr narrated to us, he said: Muhammad ibn Yazid narrated to us, from Abu al-Ala, from Qatadah and Abu Hashim, regarding a man who bought ten thousand walnuts for thirty dirhams. He buys them by count, then he transports them across a sea in two jars, then he counts the remainder based on what is in the two jars. They both said: It is disliked (makruh).