They are the people of the right hand (and will succeed).
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Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (their place will be on the right hand) those who are given their register in their right hands are the inhabitants of the garden.
Jalāl al-Dīn al-Maḥallī
تفسير : those, the ones described by the said attributes, are the ones of the right [side] (al-maymana means al-yamīn).
Sahl al-Tustari
تفسير : those are the people of the right hand. that is, those who have kept themselves safe from the horrors (ahwāl) of that day. they have no [sensory] perception other than of him (lā yuḥissūna dūnahu), just as they were in this world; [thus they attain] life with life itself (ḥayāt bi-ḥayāt), eternity with eternity itself (azaliyya bi-azaliyya), and a mystery with mystery itself (sirr bi-sirr). but god, glorified and exalted is he, knows best.his words, exalted is he: