Is it obligatory to make up the prayers that were shortened during travel without having reached the legally prescribed distance (83 km) or having observed the duration (3 days), and how many prayers must be made up?

Some scholars, such as Sheikh Al-Islam Ibn Taymiyyah, favored the permissibility of shortening the prayer for a traveler if the distance is considered travel by custom. This is because the Lawgiver did not specify a particular distance for shortening prayers, and the statements regarding its determination are contradictory and lack definitive proof.

Therefore, if the aforementioned distance is considered travel in the custom of your country, there is no harm in you shortening the prayer. Nevertheless, the view of those who hold that the minimum distance for shortening prayers is approximately 83 kilometers is more cautious, and it should be acted upon in the future.