Musannaf Ibn Abi Shaybah

Hazrat Wabra says that while coming from Madinah, I asked Hazrat Ibn Umar (may Allah be pleased with them) that if a person recites a verse of prostration while riding, what should he do? He replied that he should bow down by gesture.

Ibrahim, regarding the person who recites a verse of prostration while riding, says that whichever direction his face is, he should lower his head and gesture.

Hazrat Saeed bin Jubair narrates that I was walking with Abu Ubaidah between Kufa and Hira. He recited a verse of prostration, so I began to dismount from my ride to perform prostration. He said that for you, indicating with your head is sufficient. He himself also indicated by bowing his head.

Hazrat Thuwair's father narrates that when Hazrat Ali (may Allah be pleased with him) would recite a verse of prostration while riding, he would gesture by lowering his head.

When Sa'id bin Zayd recited a verse of prostration while riding, he would gesture by lowering his head.

When Abdullah bin Zubair recited a verse of prostration while riding, he would gesture by lowering his head.

Hazrat Ata, regarding the person who recites a verse of prostration while riding, says that he should indicate by bowing his head.

When Ibrahim recited a verse of prostration while on a mount, he would gesture by lowering his head.

Ibrahim asked Alqama whether if a person recites a verse of prostration while riding, should he dismount to perform the prostration? He replied: No, rather he should gesture with his head without dismounting.