Musannaf Ibn Abi Shayba 13:2158

Abu Bakr narrated to us, he said: Ibn ‘Ulayyah narrated to us, from Ibn ‘Awn, from Ibn Sirin, that he used to dislike paying a dirham in advance to the grocer. Al-Hasan was asked about that, and he said: "By Allah, it has not reached this level for us."