Quran 20:93 from Surah Taa-Haa on Divine Marvels.
أَلَّا تَتَّبِعَنِۖ أَفَعَصَيۡتَ أَمۡرِي
English translation: That not you follow me Then have you disobeyed my order
Transliteration: alla tattabi'ani afa'asayta amri