Surah Ash-Shu'ara, ayah 63

26:63

فَأَوۡحَيۡنَآ إِلَىٰ مُوسَىٰٓ أَنِ ٱضۡرِب بِّعَصَاكَ ٱلۡبَحۡرَۖ فَٱنفَلَقَ فَكَانَ كُلُّ فِرۡقٖ كَٱلطَّوۡدِ ٱلۡعَظِيمِ ٦٣

Fa awhaynā ilā mūsā anidrib bi'asākal-bahra fanfalaqa fakāna kullu firqin kat-tawdil-'azīm

Then We inspired to Moses, "Strike with your staff the sea," and it parted, and each portion was like a great towering mountain.