Musannaf Ibn Abi Shayba 13:2110

Abu Bakr narrated to us, he said: Abu Bakr ibn Ayyash narrated to us, from Abd al-Aziz ibn Rufay’, from Ibn Abi Mulaykah, he said: The Prophet, may Allah bless him and grant him peace, decreed the right of pre-emption (shuf’ah) in everything.