Surah Al-Baqarah, ayah 242

2:242

كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمۡ ءَايَٰتِهِۦ لَعَلَّكُمۡ تَعۡقِلُونَ ٢٤٢

Kadhālika yubayyinullāhu lakum āyātihī la'allakum ta'qilūn

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