Ibrahim says that once Aswad and Alqamah were with Sayyiduna Ibn Mas'ud (may Allah be pleased with him) in his house. Sayyiduna Ibn Mas'ud (may Allah be pleased with him) led them in prayer without adhan and iqamah, and he himself stood between them and said: When you are three people, do like this, and when you are more than three, then one of you should lead the prayer. And while bowing (in ruku'), you should bend by placing your hands between your thighs, because that scene is still before me that I am seeing the fingers of the Prophet (peace and blessings be upon him) spread apart.