Sayyiduna Ibn Abbas (may Allah be pleased with them both) said, concerning the saying of Allah Almighty: "Say: I do not ask you for any reward for it except love for kinship" [Al-Shura: 23]: "That is, maintain ties with my relatives and do not deny me."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12516