(Al-Kahf) 18 : 61
فَلَمَّا بَلَغَا مَجْمَعَ بَيْنِهِمَا نَسِيَا حُوتَهُمَا فَاتَّخَذَ سَبِيلَهُ فِي الْبَحْرِ سَرَبًا
Then they reached the junction between two seas, both of them forgot their fish, and it took its course into the sea as in a tunnel.