Nahj al-Balāgha
Hadith 2049٤٦٠. وَقَالَ (عليه السلام): الْحِلْمُ وَالْأَنَاةُ تَوْأَمَانِ يُنْتِجُهُمَا عُلُوُّ الْهِمَّةِ.
460. Amīr al-mu’minīn, peace be upon him, said: Forbearance and endurance are twins and they are the product of high courage.