Sunan Ibn Majah, Chapter: The Book of the Sunnah

that Jabir bin Abdullah said: "The Messenger of Allah (saw) was in Jiranah and he was distributing gold nuggets and spoils of war which were in Bilal's lap. A man said: 'Do justice, O Muhammad (SAW)! For you have not done justice!' He said: 'Woe to you! Who will do justice after me if I do not do justice?' Umar said: 'O Messenger of Allah! Let me strike the neck of this hypocrite!' The Messenger of Allah (saw) said: 'This man has some companions who recite the Quran but it does not go any deeper than their collarbones. They will pass through Islam like an arrow passing through its target.'" (Sahih)