Riyad as-Salihin, Book 13, Hadith 1376 (In-Book) ⓘ
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))