Follow religious orders and regulations as they are revealed by Allah, be respectful towards elders and not argue with them even if you disagree with their opinion, offer food to guests even if you are eating yourself .

This hadith is about how the practice of fasting on 'Ashura', which was observed before the order of compulsory fasting in Ramadan, was abolished after the revelation of this order. This hadith highlights that it is important to follow religious orders and regulations as they are revealed by Allah. It also teaches us to be respectful towards our elders and not to argue with them even if we disagree with their opinion. Furthermore, it encourages us to be generous and hospitable towards our guests by offering them food even if we are eating ourselves.