Surah Al-Hijr, Ayah 99
Quran 15:99 · The Rocky Tract · Makki · Para 14 · Page 267
وَاعْبُدْ رَبَّكَ حَتّٰی یَاْتِیَكَ الْیَقِیْنُ ۟۠
Transliteration
WaAAbud rabbaka hattaya/tiyaka alyaqeen
Saheeh International
And worship your Lord until there comes to you the certainty [i.e., death].
Al-Mukhtasar fi Tafsir
Go on worshipping your Lord and continue doing so as long as you live until death comes to you in that state.
Tafsir Ibn Kathir (abridged)
Explains 15:94–15:99 together — read it on 15:94