Quran english al hijr 99

واعبد ربك حتى يأتيك اليقين

WaAAbud rabbaka hattaya/tiyaka alyaqeen

 
Sahih International
And worship your Lord until there comes to you the certainty (death).
Muhsin Khan
And worship your Lord until there comes unto you the certainty (i.e. death).
Pickthall
And serve thy Lord till the Inevitable cometh unto thee.
Yusuf Ali
And serve thy Lord until there come unto thee the Hour that is Certain.
Shakir
And serve your Lord until there comes to you that which is certain.
Dr. Ghali
And worship your Lord until the Certitude comes up to you.