Surah As-Saffat, ayah 144

37:144

لَلَبِثَ فِي بَطۡنِهِۦٓ إِلَىٰ يَوۡمِ يُبۡعَثُونَ ١٤٤

Lalabitha fī batnihī ilā yawmi yub'athūn

He would have remained inside its belly until the Day they are resurrected.1304

Footnotes

1304 Meaning that the belly of the fish would have become his grave.