Musannaf Ibn Abi Shayba 3:1819

4196. Al-Fadl ibn Dukayn narrated to us, from Abu Ja'far al-Razi, from al-Rabi' ibn Anas, who said: I said to Abu al-'Aliyah, "I am in a narrow alleyway and I hear the reciter reciting the prostration (verse), so should I prostrate on the road?" He said, "Yes, prostrate on the road."