QS. Al-Ma'idah [5:61]

wa‑idzaa jaa‑uukum qaaluu aamannaa waqad dakhaluu bilkufri wahum qad kharajuu bihi waallaahu a'lamu bimaa kaanuu yaktumuuna

And when they come to you, they say, "We believe." But they have entered with disbelief [in their hearts], and they have certainly left with it. And Allah is most knowing of what they were concealing. [61]

— Sahih International