Muhammad, do justice. He (the Holy Prophet) said: Woe be upon thee, who would do justice if I do not do justice, and you would be very unfortunate and a loser if I do not do justice. Upon this Umar b. Khattab (Allah be pleased with him) said: Permit me to kill this hypocrite. Upon this he (the Holy Prophet) said: May there be protection of Allah! People would say that I kill my companions. This man and his companions would recite the Qur'an but it would not go beyond their throat, and they swerve from it just as the arrow goes through the prey. (Using translation from Muslim 1063a)
أَتَى رَجُلٌ رَسُولَ اللهِ ﷺ بِالْجِعْرَانَةِ مُنْصَرَفَهُ مِنْ حُنَيْنٍ وَفِي ثَوْبِ بِلَالٍ فِضَّةٌ وَرَسُولُ اللهِ ﷺ يَقْبِضُ مِنْهَا وَيُعْطِي النَّاسَ قَالَ يَا مُحَمَّدُ اعْدِلْ قَالَ «وَيْلَكَ وَمَنْ يَعْدِلُ إِذَا لَمْ أَعْدِلْ لَقَدْ خِبْتَ وَخَسِرْتَ إِنْ لَمْ أَكُنْ أَعْدِلُ» فَقَالَ عُمَرُ يَا رَسُولَ اللهِ «دَعْنِي أَقْتَلُ هَذَا الْمُنَافِقَ» قَالَ مَعَاذَ اللهِ أَنْ يَتَحَدَّثَ النَّاسُ أَنِّي أَقْتُلُ أَصْحَابِي إِنَّ هَذَا وَأَصْحَابَهُ يَقْرَءُونَ الْقُرْآنَ لَا يُجَاوِزُ حَنَاجِرَهُمْ يَمْرُقُونَ مِنْهُ كَمَا يَمْرُقُ السَّهْمُ مِنَ الرَّمِيَّةِ