Nahj al-Balāgha
Hadith 1654١٨. وَقَالَ (عليه السلام) فِي الَّذِينَ اعْتَزَلُوا الْقِتَالَ مَعَهُ: خَذَلُوا الْحَقَّ، وَلَمْ يَنْصُرُوا الْبَاطِلَ.
18. Amīr al-mu’minīn, peace be upon him, said about those who avoided fighting on his side: They abandoned right but did not support wrong. [1]