Surah Al-Kahf 18:75

۞ قَالَ أَلَمْ أَقُل لَّكَ إِنَّكَ لَن تَسْتَطِيعَ مَعِىَ صَبْرًا

[Al-Khiḍr] said, "Did I not tell you that with me you would never be able to have patience?"

Translation: Saheeh International

Tafsir

He said ‘Did I not say to you that you would never be able to bear with me?’ laka ‘to you’ has been added to that same statement which was made before because this time there could not be any excuse for Moses’s impatience.

Excerpt from Tafsir al-Jalalayn, commentary on 18:75, via Quran.com. The reader has the full commentary and 9 more tafsirs.