Malik related to me from Zayd ibn Aslam that Abdullah ibn Umar
said, "Two men from the east stood up and spoke, and people were
amazed at their eloquence. The Messenger of Allah, may Allah bless him
and grant him peace, said, 'Some eloquence is sorcery,' or he said,
'Part of eloquence is sorcery.' "
Muwatta Malik Book 56, Hadith 7