Riyad as-Salihin 1376
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)‏‏)‏