It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that Sayyiduna Umar bin Al-Khattab (may Allah be pleased with him) came to the Messenger of Allah (peace and blessings be upon him) with a copy of the Torah and said:“O Messenger of Allah! This is a copy of the Torah.”The Prophet (peace and blessings be upon him) remained silent, and Umar (may Allah be pleased with him) began to read it. The face of the Messenger of Allah (peace and blessings be upon him) began to change. Then Sayyiduna Abu Bakr (may Allah be pleased with him) said:“May the mothers who lose (their children) lose you! Do you not see the face of the Messenger of Allah (peace and blessings be upon him)?”So Umar (may Allah be pleased with him) looked at the face of the Messenger of Allah (peace and blessings be upon him) and said:“I seek refuge with Allah from the anger of Allah and the anger of His Messenger. We are pleased with Allah as our Lord, with Islam as our religion, and with Muhammad as our Prophet.”Then the Messenger of Allah (peace and blessings be upon him) said:“By Him in Whose hand is the soul of Muhammad, if Musa (peace be upon him) were to appear among you and you were to follow him and leave me, you would surely go astray from the straight path. If he (Musa) were alive and found my prophethood, he would surely follow me.”