What is the ruling on one who fasts and prays only in Ramadan?

The questioner : Now, what is the ruling on one who fasts and prays when Ramadan comes, but when Ramadan ends, he ends up abandoning the prayer and the fasting?

The Shaykh : What is clear to me from the evidence is that abandoning the prayer does not constitute disbelief unless a person abandons it absolutely. As for one who prays and then leaves it off, praying at times and abandoning it at others, what appears to me from the evidence is that he does not become a disbeliever on account of that, by virtue of his saying meaning the prayer, and by virtue of his saying . However, this man who does not pray and does not fast, who does not pray except in Ramadan and fasts in Ramadan, I am in doubt about his faith, because if he were truly a believer, he would have prayed in Ramadan and in other times. As for his not knowing his Lord except in Ramadan, I doubt his faith, but I do not rule that he is a disbeliever; rather, I withhold judgment on him and leave him to Allah the Exalted.