Quran 7:28 from Surah Al-A'raaf on Divine Marvels.
وَإِذَا فَعَلُواْ فَٰحِشَةٗ قَالُواْ وَجَدۡنَا عَلَيۡهَآ ءَابَآءَنَا وَٱللَّهُ أَمَرَنَا بِهَاۗ قُلۡ إِنَّ ٱللَّهَ لَا يَأۡمُرُ بِٱلۡفَحۡشَآءِۖ أَتَقُولُونَ عَلَى ٱللَّهِ مَا لَا تَعۡلَمُونَ
English translation: And when they do immorality they say We found on it our forefathers and Allah (has) ordered us of it Say Indeed Allah (does) not order immorality Do you say about Allah what not you know
Transliteration: wa-idha fa'alu fahishatan qalu wajadna alayha abaana wal-lahu amarana biha qul inna al-laha la yamuru bil-fahshai ataquluna ala al-lahi ma la ta'lamuna