26:188
Ash-Shu'ara 188
Surah Ash-Shu'ara (الشعراء), verse 188 — reference 26:188. Arabic text with optional translation and free audio on Al-Qalam.
قَالَ رَبِّىٓ أَعْلَمُ بِمَا تَعْمَلُونَ
qāla rabbī aʿlamu bimā taʿmalūna
He said, "My Lord is most knowing of what you do."