Jabir told how ‘Umar b. al-Khattab brought God’s messenger a copy of the Torah saying, “Messenger of God, this is a copy of the Torah.” When he received no reply he began to read to the obvious displeasure of God’s messenger, so Abu Bakr said, “Confound you 1 do you not see how God’s messenger is looking?” So ‘Umar looked at God’s messenger’s face and said, “I seek refuge in God from the anger of God and His messenger. We are satisfied with God as Lord, with Islam as religion, and with Muhammad as Prophet.” Then God’s messenger said, “By Him in whose hand Muhammad’s soul is, were Moses to appear to you and you were to follow him and abandon me, you would err from the right way. Were he alive and came in touch with my prophetic mission he would follow me.”
Ibn Mas'ud said, ‘If anyone follows someone’s custom let him follow the custom of one who is dead, for one cannot be sure of the living not being led astray. Those to follow are Muhammad’s Companions who were the most excellent among the people, purest in heart, most profound in knowledge, most unassuming, whom God chose for companionship with His Prophet and to establish His religion. So recognise their excellence, follow their traces, and hold as fast as you can to their character and way of life, for they followed right guidance.”