Qur'an 18:76

قَالَ إِن سَأَلْتُكَ عَن شَىْءٍۭ بَعْدَهَا فَلَا تُصَـٰحِبْنِى ۖ قَدْ بَلَغْتَ مِن لَّدُنِّى 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."”

Al-Kahf 18:76 · Saheeh International