Nahj al-Balāgha

Hadith 1741
governance
١٤١. وَقَالَ (عليه ‏السلام): قِلَّةُ الْعِيَالِ أَحَدُ الْيَسَارَيْنِ.
141. Amīr al-mu’minīn, peace be upon him, said: A small family is one of the ways of (securing) ease.
Source: al-Sharīf al-Raḍī