Sura 18 Al-Kahf (The Cave), ayah 76

1. قَالَ إِنْ سَأَلْتُكَ عَنْ شَيْءٍ بَعْدَهَا فَلَا تُصَاحِبْنِي ۖ قَدْ بَلَغْتَ مِنْ لَدُنِّي 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."

   18:76

Translation: Saheeh International