Nahj al-Balāgha

Hadith 2115
loveintellectwisdom
١٤٢. وَقَالَ (عليه ‏السلام): الْتَّوَدُّدُ نِصْفُ الْعَقْل.
142. Amīr al-mu’minīn, peace be upon him, said: Loving one another is half of wisdom
Source: al-Sharīf al-Raḍī