Hadith 12:1
Mu'awiyah (May Allah be pleased with him) reported:
The Messenger of Allah said, "When Allah wishes good for someone, He bestows upon him the understanding of Deen." [Al-Bukhari and Muslim] .
وعن معاوية رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم : "من يرد الله به خيرًا يفقه في الدين" ((متفق عليه))