Musannaf Ibn Abi Shayba 19:559

Abu Bakr narrated to us, he said: Yahya bin Sa'id narrated to us, from Ibn Jurayj, from Ibn Abi Mulaykah, he said: I wrote to Ibn al-Zubayr asking him about a man from whom the smell of drink is found. He said: If he is an addict, then flog him.