To one of his officers
Nahj al-Balāgha|Volume 1|Book 2|Chapter 41
وَوَاللهِ لَوْ أَنَّ الْحَسَنَ وَالْحُسَيْنَ فعَلاَ مِثْلَ الَّذِي فَعَلْتَ، مَا كَانَتْ لَهُمَا عِنْدِي هَوَادَةٌ، وَلَا ظَفِرَا مِنِّي بِإِرَادَةٍ، حَتَّى آخُذَ الْحَقَّ مِنْهُمَا، وَأُزِيحَ الْبَاطِلَ عَنْ مَظْلَمَتِهِمَا.
By Allāh, even if Ḥasan and Ḥusayn had done what you did there would have been no leniency with me for them and they could not have won their way with me till I had recovered from them the right and destroyed the wrong produced by their unjust action.