Musannaf Ibn Abi Shayba 19:27

Abu Bakr narrated to us, he said: Ibn Idris narrated to us, from Ibn Abi ‘Aruba and Isma‘il, from Qatadah, from Sa‘id ibn al-Musayyib, from ‘Umar, he said: The hand is not to be cut except for five [dirhams].