Using non- Muslim names


my question is that when a man chats on the internet with someone and the person on the other end asks him his name, he replies with a non-Muslim name to hide his identity, does this constitute kufr ( Note; there was no intention of Kufr) if it does constitute kufr then what has to be done? If it is just to deceive the other jokingly will it be permissible? Continue reading “Using non- Muslim names”