Tafseer Ibn Kathir of AL KAHFI [76]

قَالَ إِن سَأَلْتُكَ عَن شَيْءٍ بَعْدَهَا فَلَا تُصَاحِبْنِي قَدْ بَلَغْتَ مِن لَّدُنِّي عُذْرًا

[Moses] said, "If I should ask you about anything after this, then do not keep me as a companion. You have obtained from me an excuse."