Al-Kahf - 18:69

قَالَ سَتَجِدُنِي إِن شَاء اللَّهُ صَابِرًا وَلَا أَعْصِي لَكَ أَمْرًا
[18:69]
He said: If Allah pleases, you will find me patient and I shall not disobey you in any matter.
Moses said: "Thou wilt find me, if Allah so will, (truly) patient: nor shall I disobey thee in aught."
He said: Allah willing, thou shalt find me patient and I shall not in aught gainsay thee.