Al-Hijr 15:99
وَٱعْبُدْ رَبَّكَ حَتَّىٰ يَأْتِيَكَ ٱلْيَقِينُ
WaAAbud rabbaka hattaya/tiyaka alyaqeen
And worship your Lord until there comes to you the certainty [i.e., death].
and worship your Lord until comes to you that which is certain.
وَٱعْبُدْ رَبَّكَ حَتَّىٰ يَأْتِيَكَ ٱلْيَقِينُ
WaAAbud rabbaka hattaya/tiyaka alyaqeen
And worship your Lord until there comes to you the certainty [i.e., death].
and worship your Lord until comes to you that which is certain.