Musnad Ahmad 30:1854

'Affan narrated to us, he said: Shu'bah narrated to us, he said: Muhammad ibn al-Jabbar—a man from the Ansar—informed me, he said: I heard Muhammad ibn Ka'b al-Qurazi narrating that he heard Abu Hurayrah saying: I heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "Indeed, the womb (kinship) is a branch from the Most Merciful. It says: 'O Lord, I have been severed; O Lord, I have been treated badly; O Lord, I have been wronged; O Lord, O Lord.' He said: So He answers it: 'Are you not pleased that I join whoever joins you, and I sever whoever severs you?'"