It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "Kinship (rahim) is a branch attached to the waist of the Most Merciful; it implores Him by its right, and Allah says: 'Are you not pleased that I join whoever joins you and cut off whoever cuts you off? Whoever joins you has joined Me, and whoever cuts you off has cut Me off.'"
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20272