Qur'an 18:61 · Al-Kahf

فَلَمَّا بَلَغَا مَجْمَعَ بَيْنِهِمَا نَسِيَا حُوتَهُمَا فَٱتَّخَذَ سَبِيلَهُۥ فِى ٱلْبَحْرِ سَرَبًۭا

(61) But when they reached the junction between them, they forgot their fish, and it took its course into the sea, slipping away.