Abu Huraira (Allah be pleased with him) reported the Messenger of Allah ﷺ as saying: None among you should observe fast on Friday, but only that he observes fast before it and after it.
The Prophet Muhammad was known for his wisdom and compassion when it came to teaching his followers about religion and spirituality. He taught them that moderation was key when it came to practicing their faith so that they could remain healthy both physically and spiritually while still fulfilling their obligations towards Allah. This hadith serves as an example of this wisdom by encouraging Muslims not only to observe fasts but also do so in moderation by avoiding doing so every single day or week such as on Fridays specifically mentioned here.