Quran 56:70 from Surah Al-Waaqia on Divine Marvels.
لَوۡ نَشَآءُ جَعَلۡنَٰهُ أُجَاجٗا فَلَوۡلَا تَشۡكُرُونَ
English translation: If We willed We (could) make it salty then why are you not grateful then why are you not grateful
Transliteration: law nashau ja'alnahu ujajan falawla tashkuruna