The Ruling on Making Up Ramadan in Non-Muslim Lands

Question: If one is accustomed to making up Ramadan in non-Muslim lands, is he sinful?

Answer: This requires detailed explanation. A Muslim rejoices at the arrival of Ramadan and is pleased to catch it while in Muslim lands, because of the manifestations of Ramadan in Muslim lands that one outside the lands of Islam does not feel or perceive. He sees the worshippers, their multitude, and their competition in obedience, which increases his energy, strength, and desire for good.
As for the one who is in non-Muslim lands, he is in danger of his reward being diminished due to the fewness of his righteous deeds, or of incurring sin by committing a crime. He may also increase in sins due to his distance from the people of good and his proximity to the people of evil. It is obligatory for one who is accustomed to this to fear Allah, to abandon this habit, and to fast Ramadan in Muslim lands for a prescribed purpose, such as calling to Allah, leading the Muslims in prayer, and other good deeds. This is what the Muslim is rewarded and recompensed for, and he may obtain through this more reward than he would obtain in Muslim lands, because of his calling to Allah and teaching people good, while being cautious of all evil. And success is from Allah, Glorified and Exalted is He.