Musnad Abu Ya'la al-Mawsili 238:6

Ishaq narrated to us, Ali ibn Qadim narrated to us, Sharik informed us, from Asim ibn Ubayd Allah, from Abdullah ibn Amir ibn Rabi'ah, from his father, who said: The Messenger of Allah (ﷺ) said: "He says—meaning the Lord, Mighty and Majestic is He—'Indeed, the womb (kinship) is a branch from Me. Whoever maintains it, I maintain him, and whoever severs it, I sever him.'"