Use Of Word Kufr For Denying Lasthood Of Prophet SAW
Mr. Sameer said right. It is only when one in one’s heart and conscience is convinced that he has denied a truth, only then can he be called kafir. Since this state of mind and conscience is not knowable to us, so we can say that the act is kufr but cannot say for sure that the person is a kafir. He might have refused out of confusion or not being convinced.