Yahya related to me from Malik from Jafar ibn Muhammad ibn Ali
from his father that Umar ibn al-Khattab mentioned the magians and
said, "I do not know what to do about them." Abd ar-Rahman ibn Awf
said, "I bear witness that I heard the Messenger of Allah, may Allah
bless him and grant him peace, say, 'Follow the same sunna with them
that you follow with the people of the Book . ' "
Muwatta Malik Book 17, Hadith 46