Quran 45:18 from Surah Al-Jaathiya on Divine Marvels.
ثُمَّ جَعَلۡنَٰكَ عَلَىٰ شَرِيعَةٖ مِّنَ ٱلۡأَمۡرِ فَٱتَّبِعۡهَا وَلَا تَتَّبِعۡ أَهۡوَآءَ ٱلَّذِينَ لَا يَعۡلَمُونَ
English translation: Then We put you on an ordained way of the matter so follow it and (do) not follow (the) desires (of) those who (do) not know
Transliteration: thumma ja'alnaka ala shari'atin mina al-amri fa-ittabi'ha wala tattabi' ahwaa alladhina la ya'lamuna