Kalla bal rana AAala quloobihim ma kanoo yaksiboona
English
Ahmed Ali
No. In fact what they have been doing has rusted their hearts.
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Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (nay) truly, o muhammad, (but that which they have earned) which they have done and said in their state of idolatry (is rust upon their hearts) allah has sealed the hearts of those who disbelieve in the day of judgement; it is also said that the accumulation of sins blackens the heart and this is what is meant by the rust of hearts.
Jalāl al-Dīn al-Maḥallī
تفسير : no indeed! — a deterrent and a warning against saying such [things]. rather there has slayed, engulfed, their hearts, covering them like rust that which they earned, of acts of disobedience.