5:61
وَإِذَا جَاۤءُوكُمۡ قَالُوۤا۟ ءَامَنَّا وَقَد دَّخَلُوا۟ بِٱلۡكُفۡرِ وَهُمۡ قَدۡ خَرَجُوا۟ بِهِۦۚ وَٱللَّهُ أَعۡلَمُ بِمَا كَانُوا۟ یَكۡتُمُونَ
When they come unto you (Muslims), they say: We believe; but they came in unbelief and they went out in the same; and Allah knoweth best what they were hiding.
— Mohammed Marmaduke William Pickthall
Wa izaa jaaa'ookum qaalooo aamannaa wa qad dakhaloo bilkufri wa hum qad kharajoo bih; wallaahu a'lamu bimaa kaanoo yaktumoon