15 : 99
وَٱعۡبُدۡ رَبَّكَ حَتَّىٰ يَأۡتِيَكَ ٱلۡيَقِينُ
and worship your Lord until the certainty [of death] comes to you.
Ayah 99 of الحِجر (15 : 99). This page carries the verse in the Uthmani script with a translation of its meaning, at a stable URL that can be cited on its own.
وَٱعۡبُدۡ رَبَّكَ حَتَّىٰ يَأۡتِيَكَ ٱلۡيَقِينُ
and worship your Lord until the certainty [of death] comes to you.