Surah Ash-Shura, ayah 32

وَمِنۡ ءَايَٰتِهِ ٱلۡجَوَارِ فِي ٱلۡبَحۡرِ كَٱلۡأَعۡلَٰمِ ٣٢

Wamin āyātihil-jawāri fil-bahri kal-a'lām

And of His signs are the ships in the sea, like mountains.