Musnad Ahmad 30:2023

Ibrahim ibn Abi al-Abbas narrated to us, he said: Abu Uways narrated to us, he said: Al-Zuhri said: I heard Abd al-Rahman ibn Hurmuz al-A'raj saying: Abu Hurayrah informed me that he heard the Messenger of Allah, may Allah bless him and grant him peace, saying: "Whoever is asked by his neighbor to place a wooden beam in his wall, let him not prevent him." Then Abu Hurayrah said: "Why do I see you turning away from it? By Allah, I will certainly cast it between your shoulders."