It is narrated from Hazrat Ahmar bin Juz’ (may Allah be pleased with him) that when the Holy Prophet (peace and blessings of Allah be upon him) would go into prostration, we would feel compassion for the Holy Prophet (peace and blessings of Allah be upon him) at that time because he (peace and blessings of Allah be upon him) would exert great effort in separating his elbows from his sides.