Quran 21:23 from Surah Al-Anbiyaa on Divine Marvels.
لَا يُسۡـَٔلُ عَمَّا يَفۡعَلُ وَهُمۡ يُسۡـَٔلُونَ
English translation: Not He (can) be questioned about what He does but they will be questioned
Transliteration: la yus'alu amma yaf 'alu wahum yus'aluna