Musannaf Ibn Abi Shayba 13:1239

Abu Bakr narrated to us, he said: Abbad bin al-Awwam narrated to us, from Amr bin Amir, from Qatadah, from Salim, that he disliked to make an exception (istithna') for a measure (kayl), or a basket (sall), or a load (karr).