But what could tell you that per chance he might become pure

﴿وَمَا يُدۡرِيكَ لَعَلَّهُۥ يَزَّكَّىٰٓ ﴾
[عَبَسَ: 3]

But what could tell you that per chance he might become pure (from sins)

﴿وما يدريك لعله يزكى﴾ [عَبَسَ: 3]

Al Bilal Muhammad Et Al
But how could you know whether he might be purified

Ali Bakhtiari Nejad
And how would you know, he may purify himself

Ali Quli Qarai
And how do you know, maybe he would purify himself

Ali Unal
What would inform you (O haughty one) but that he might grow in purity (by doing good deeds)

Hamid S Aziz
And what would make you know that he would grow (spiritually)

John Medows Rodwell
But what assured thee that he would not be cleansed by the Faith

Literal
And what makes you know/informs you maybe/perhaps he, he purifies/corrects (himself)

Mir Anees Original
And what will make you realize that he might have purified himself

Mir Aneesuddin
And what will make you realize that he might have purified himself