Musannaf Ibn Abi Shayba 3:1931

Yazid ibn Harun narrated to us, from Habib, from Amr ibn Haram, who said: Jabir ibn Zayd was asked about a man standing, praying, and a man praying near him, and he (the latter) recited a prostration (verse). Should he (the first man) prostrate if he hears it? He said: "No."