6:105 · Al-An'aam
وَكَذَٰلِكَ نُصَرِّفُ الْآيَاتِ وَلِيَقُولُوا دَرَسْتَ وَلِنُبَيِّنَهُ لِقَوْمٍ يَعْلَمُونَ
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.