Surah Al-An'am (The Cattle), Verse 105

وَكَذٰلِكَ نُصَرِّفُ الْاٰیٰتِ وَلِیَقُوْلُوْا دَرَسْتَ وَلِنُبَیِّنَهٗ لِقَوْمٍ یَّعْلَمُوْنَ ۟

Wa kazaalika nusarriful Aayaati wa liyaqooloo darasta wa linubaiyinahoo liqawminy ya'lamoon

“Thus do we explain the signs by various (symbols): that they may say, "Thou hast taught (us) diligently," and that We may make the matter clear to those who know.”

Quran 6:105 (Yusuf Ali Translation)