Al-Baqarah 2:88

Waqaloo quloobuna ghulfun ballaAAanahumu Allahu bikufrihim faqaleelan mayu/minoon

And they said, "Our hearts are wrapped." But, [in fact], Allāh has cursed them for their disbelief, so little is it that they believe.

And they said, “Our hearts are veiled.” Rather, Allah has cast damnation upon them for their disbelief. So, they believe just in very little things