Surah Ash-Shu'ara — Ayah 63 (26:63)
فَأَوۡحَيۡنَآ إِلَىٰ مُوسَىٰٓ أَنِ ٱضۡرِب بِّعَصَاكَ ٱلۡبَحۡرَۖ فَٱنفَلَقَ فَكَانَ كُلُّ فِرۡقٖ كَٱلطَّوۡدِ ٱلۡعَظِيمِ ٦٣
English translation (Saheeh International)
Then We inspired to Moses, "Strike with your staff the sea," and it parted, and each portion was like a great towering mountain.
Brief commentary
And so I revealed to Moses commanding him to strike the sea with his staff, which he did. The sea parted, turning into twelve paths: the same number as the tribes of the Israelites, and each parted segment was like a great mountain in its grandeur and stability, such that no water flowed from it.