وَٱعْبُدْ رَبَّكَ حَتَّىٰ يَأْتِيَكَ ٱلْيَقِينُ
Saheeh International(99) And worship your Lord until there comes to you the certainty [i.e., death].
English Translation - Rowwad Translation Centerand worship your Lord until the certainty [of death] comes to you.
English Translation - Hilali and Khan99. And worship your Lord until there comes unto you the certainty (i.e. death).[8]