It was narrated that Tawoos said:

A man came to Ibn "Abbas and asked him - Sulaiman bin Dawood said: Shu"bah told us: "Abdul-Malik told us: I heard Tawoos say: A man asked Ibn "Abbas about the meaning of the verse in which Allah says: “Say (O Muhammad (ﷺ)): ‘No reward do I ask of you for this except to be kind to me for my kinship with you’“ [ash-Shoora 42:23]. Sa’eed bin Jubair said: [It refers to] the relatives of Muhammad (ﷺ). Ibn "Abbas said: You have been too hasty (to understand the meaning). There was no clan of Quraish but the Messenger of Allah (ﷺ) had ties of kinship with them. Then this verse was revealed: “Say (O Muhammad (ﷺ)): ‘No reward do I ask of you for this except to be kind to me for my kinship with you’" [ash-Shoora 42:23], [meaning], will you not uphold ties of kinship between me and you?