Verily, that which you are promised (i.e. Resurrection in the Hereafter and

﴿إِنَّمَا تُوعَدُونَ لَصَادِقٞ ﴾
[الذَّاريَات: 5]

Verily, that which you are promised (i.e. Resurrection in the Hereafter and receiving the reward or punishment of good or bad deeds, etc.) is surely true

﴿إنما توعدون لصادق﴾ [الذَّاريَات: 5]

Al Bilal Muhammad Et Al
Indeed that which you are promised is true

Ali Bakhtiari Nejad
what you are promised is certainly true

Ali Quli Qarai
indeed what you are promised is true

Ali Unal
What you are promised is most certainly true

Hamid S Aziz
That of which you are warned is most surely true

John Medows Rodwell
True, indeed, is that with which ye are threatened

Literal
Truly/indeed what you are being promised is truthful/true (E)

Mir Anees Original
that which you are promised is certainly true

Mir Aneesuddin
that which you are promised is certainly true