Say, "If the sea were ink for [writing] the words1 of my Lord, the sea would be exhausted before the words of my Lord were exhausted, even if We brought the like of it in [continual] supplement."
Translation: Saheeh International (English)
1 The words of Allāh's unlimited knowledge or words describing His attributes and His grandeur or praise of Him (subḥānahu wa taʿālā).
Say - O Messenger: the words of my Lord are many. If the ocean were to be ink to write them with, the ocean water would finish before His words come to an end, and if I were to bring more oceans they would also finish.