Narrated Tawus: Ibn `Abbas recited the Qur'anic Verse:--'Except to be kind to me for my kin-ship to you-- (42.23) Sa`id bin Jubair said, (The Verse implies) the kinship of Muhammad. Ibn `Abbas said, There was not a single house (i.e. sub-tribe) of Quraish but had a kinship to the Prophet and so the above Verse was revealed in this connection, and its interpretation is: 'O Quraish! You should keep good relation between me (i.e. Muhammad) and you.