(Thwaha) 20 : 94
قَالَ يَا ابْنَ أُمَّ لَا تَأْخُذْ بِلِحْيَتِي وَلَا بِرَأْسِي ۖ إِنِّي خَشِيتُ أَنْ تَقُولَ فَرَّقْتَ بَيْنَ بَنِي إِسْرَائِيلَ وَلَمْ تَرْقُبْ قَوْلِي
He said: "Oh son of my mother! You don’t seize by my beard or head; indeed, I feared that you would say: 'You caused for division among the Children of Israel, and you didn’t wait for my word'."
See explanation 7: 150 and 11: 17.