« Al-Hijr »
« Verse-99 »
وَاعْبُدْ رَبَّكَ حَتَّى يَأْتِيَكَ الْيَقِينُ
English Transliteration: Vaa’bud raabbaka haattea ya’tiyakal yaakeen(yaakeenu).
And be a servant to Allah until what is certain (Hakk'ul yakîn, the last certainty, the Certainty of Allah when you become a slave to Him) comes to you.