When the people asked Waleed what opinion they should have regarding Rasulullah (sallallahu ‘alaihi wasallam), he replied, “By Allah! There is a remarkable sweetness and attraction in the speech of Muhammed (sallallahu ‘alaihi wasallam), and his speech has an extraordinary magnificence to it. The roots of his speech are incredibly lush and its branches are fruit-bearing (in other words, Islam is like a fruit-bearing tree. Its roots are strong and firmly embedded in the ground and its branches extend towards the sky and are laden with fruit).”
Waleed continued, “I know well that whatever suggestion you have given regarding our opinion of Rasulullah (sallallahu ‘alaihi wasallam), each and every one is baseless and false. Nevertheless, I think that the most appropriate opinion is for us to say that he is a sorcerer, and his speech is also sorcery which creates disunity between husband and wife, between brothers and between members of the same clan. After all, this is the special effect of sorcery.” Saying this, the meeting came to a close.
(Extracted from Seeratul Mustafa 1/180-181)