Abu Bakr Shaybani says: The owner of this house narrated a hadith to me, and he pointed towards the house of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), that he (Sayyiduna Ibn Mas'ud, may Allah be pleased with him) asked the Noble Prophet (peace and blessings be upon him): Which deed is the best or most beloved to Allah? He replied: To perform the prayer at its (earliest) appointed time.