Besides Muslims did God require fasting from Jews and Christians also?
We know now Jews and Christians rarely fast. Were they required by God in early days of their religion?
When Moses Aleh Salam went on Mt.Sini leaving all Jews behind, Allah made Moses fast for 40 days fduring his spiritual training. At the end Allah gave him ten commandments and also told him that his people has made Calf god and are worshipping it. Allah commanded Moses to have all heads of 12 tribes of Jews to kill with their own hands all those from their tribes who participated in worshipping calf god made from gold. 60,000 Jew were killed by their own leader that day. If they had not obeyed Allah SWT, Allah would havew destroyed all Jews who came from Egypt their freedom from bondage.
Jesus Aleh Salam was a Jew himself and I am sure he and his followers did the prescribed fasting as was done by Moses AS.
Off course Paul hijacked the teachings of Jesus AS and created Catholicism based on Paganism. Christians made Jesus their god, to claim that Christianity is the best religion though Jesus never said in Bible that he is son of God, Lord or God of his followers.