Quran 6:105 from Surah Al-An'aam on Divine Marvels.
وَكَذَٰلِكَ نُصَرِّفُ ٱلۡأٓيَٰتِ وَلِيَقُولُواْ دَرَسۡتَ وَلِنُبَيِّنَهُۥ لِقَوۡمٖ يَعۡلَمُونَ
English translation: And thus We explain the Signs that they (may) say You have studied and that We (may) make it clear for a people who know
Transliteration: wakadhalika nusarrifu al-ayati waliyaqulu darasta walinubayyinahu liqawmin ya'lamuna