Nahj al-Balāgha
Hadith 2084٨٤. وَقَالَ (عليه السلام): بَقِيَّةُ السَّيْفِ أَبْقَى عَدَداً وَأَكْثَرُ وَلَداً.
84. Amīr al-mu’minīn, peace be upon him, said: The survivors of the sword (from getting killed) are large in number and have a large progeny.