If Allah Jalla Jalalahu wants to do good to a person, He makes him comprehend (the religion). [The understanding of the Qur'an and As-Sunna (legal ways) of the Prophet (Muhammad (ﷺ))]

Sahih al-Bukhari · Book 3 · Hadith 71

حَدَّثَنَا سَعِيدُ بْنُ عُفَيْرٍ، قَالَ حَدَّثَنَا ابْنُ وَهْبٍ، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، قَالَ قَالَ حُمَيْدُ بْنُ عَبْدِ الرَّحْمَنِ سَمِعْتُ مُعَاوِيَةَ، خَطِيبًا يَقُولُ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏"‏ مَنْ يُرِدِ اللَّهُ بِهِ خَيْرًا يُفَقِّهْهُ فِي الدِّينِ، وَإِنَّمَا أَنَا قَاسِمٌ وَاللَّهُ يُعْطِي، وَلَنْ تَزَالَ هَذِهِ ا…

Narrated Muawiya: I heard Allah's Messenger (ﷺ) saying, "If Allah wants to do good to a person, He makes him comprehend the religion. I am just a distributor, but the grant is from Allah. (And remember) that this nation…