Follow religious practices with devotion and sincerity .

This hadith talks about the practice of fasting on the day of 'Ashura'. Before fasting in Ramadan was prescribed, people used to fast on this day as a form of worship. However, after the order for compulsory fasting in Ramadan was revealed, it became optional for people to choose whether they want to fast on this day or not. This hadith teaches us that although we should follow religious practices and rituals with devotion and sincerity, we should also have freedom of choice when it comes to our religious obligations. We should be able to make decisions based upon our own understanding and beliefs without feeling compelled by external forces.