وَقَالُواْ قُلُوبُنَا غُلْفٌ
(And they say, â€Our hearts are Ghulf.''), means, â€They are covered.''`Ikrimah said, â€There is a stamp on them.'' Abu Al-`Aliyah said, â€They do not comprehend.'' Mujahid and Qatadah said that Ibn `Abbas read the Ayah in a way that means, â€Our hearts contain every type of knowledge and do not need the knowledge that you (O Muhammad) have.'' This is the opinion of `Ata' and Ibn `Abbas.