hadith
3974
۞
Imam Ali (AS) said, By the intelligence of the messenger and his etiquette, the intelligence of the sender [of the message] is gauged.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : بِعَقلِ الرَّسولِ وَ أدَبِهِ يُسْتَدَلُّ على عَقْلِ المُرْسِلِ