Rather they say, `He has forged a lie against Allâh (by presenting this Qur'ân).' If Allâh so willed He would set a seal (against them) upon your heart. But Allâh eradicates falsehood (through you) and establishes the truth by (dint of) His words (-prophecies and revelation). He is indeed, One knowing full well (even) the innermost thoughts of the hearts.