Jabir told that when ‘Umar came to the Prophet (ﷺ) saying, “We hear from Jews traditions which charm us, so do you think we should write down some of them ?” he replied, “Are you in a state of confusion as the Jews and the Christians were? I have brought them to you white and pure, and if Moses were alive he would feel it absolutely necessary to follow me.” Ahmad transmitted it, and also Baihaqi in Shu’ab al-iman.