4:155 fabimaa naqDihim miythaaqahum wa kufrihim bi aayaatil-laahi wa qatlihimul ambiyaa-a bi gayri Haq-qiw wa qawlihim quluubunaa gulf* bal Taba'Al-laahu 'Alayhaa bi kufrihim falaa yu'minuuna il-laa qaliylaa

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Ahmed Raza Khan: Mohammed Aqib Qadri:
So Allah cursed them because of their constantly breaking their covenant - and they disbelieved in the signs of Allah, and they used to wrongfully martyr the Prophets, and because they said, "Our hearts are covered" in fact Allah has set a seal upon their hearts due to their disbelief, so that they do not accept faith, except a few.

Yusuf Ali:
(They have incurred divine displeasure): In that they broke their covenant; that they rejected the signs of Allah; that they slew the Messengers in defiance of right; that they said, "Our hearts are the wrappings (which preserve Allah's Word; We need no more)";- Nay, Allah hath set the seal on their hearts for their blasphemy, and little is it they believe;-

Pickthal:
Then because of their breaking of their covenant, and their disbelieving in the revelations of Allah, and their slaying of the prophets wrongfully, and their saying: Our hearts are hardened - Nay, but Allah set a seal upon them for their disbelief, so that they believe not save a few -