Musannaf Ibn Abi Shayba 13:1759

Abu Bakr narrated to us, he said: Isa ibn Yunus narrated to us, from al-Awza’i, from al-Zuhri, that he said regarding the intoxicated person: As for his buying and selling, it is not permissible; he is in the position of the feeble-minded (safih).