Dalil
العربية

Quran Al-Baqarah 2:242

كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمۡ ءَايَٰتِهِۦ لَعَلَّكُمۡ تَعۡقِلُونَ

Translation

Thus does Allāh make clear to you His verses [i.e., laws] that you might use reason.