Hadith 17:471
Muhammad ibn Bishr narrated to us, he said: Mis'ar narrated to us, he said: Alqamah ibn Marthad narrated to me, from 'Ata' ibn Abi Rabah, that he disliked—or he said: he used to dislike—greeting with the hand, and he saw no harm in [greeting] with the head.
حدثنا محمد بن بشر قال حدثنا مسعر قال حدثني علقمة بن مرثد عن عطاء بن أبي رباح أنه كره أو قال كان يكره السلام باليد ولم ير بالرأس بأسا