The Command to Fast
The Command to Fast
ibn Kathir
183. 0 you who believe! Fasting is prescribed for you as it was prescribed for those before you, that you may acquire Taqwa
184. Fast for a fixed number of days, but if any of you is ill or on a journey, the same number (should be made up) from other days. And as for those who can fast with difficulty, (e.g., an old man), they have (a choice either to fast or) to feed a Miskin (poor person) (for every day). But whoever does good of his own accord, it is better for him. And that you fast is better for you if only you know.
The Order to Fast
In an address to the believers of this Ummah, Allah ordered them to fast, that is, to abstain from food, drink and sexual activity with the intention of doing so sincerely for Allah the Exalted alone. This is because fasting purifies the souls and cleanses them from the evil that might mix with them and their ill behavior. Allah mentioned that He has ordained fasting for Muslims just as He ordained it for those before them, they being an example for them in that, so they should vigorously perform this obligation more obediently than the previous nations.