وَكَيْفَ تَصْبِرُ عَلَىٰ مَا لَمْ تُحِطْ بِهِۦ خُبْرًا
Wa kaifa tasbiru 'alaa maa lam tuhit bihee khubraa
Musa: "İnşallah sabrettiğimi göreceksin, sana hiçbir işte baş kaldırmayacağım" dedi.
And how can you be patient with what you do not encompass in knowledge?
Khubra is knowledge got by going through a thing, and surah al-Kahf uses it twice with the same verb for encompassing: negated of Musa here, and at 18:91 stated of God, who encompasses everything Dhul-Qarnayn had with him. What is a limit at this verse returns as scope twenty-three verses later. The impatience being predicted is put down to what Musa has not been through, which leaves his character out of it.