People of Medina, where are your scholars? I heard the Messenger of Allah ﷺ say on this very day: It is the day of 'Ashura. Allah has not made fasting on This day obligatory for you but I am fasting. He who likes to observe fast among you should do so, and he who likes not to observe it may not observe it.  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ لِهَذَا الْيَوْمِ هَذَا يَوْمُ عَاشُورَاءَ وَلَمْ يَكْتُبِ اللَّهُ عَلَيْكُمْ صِيَامَهُ وَأَنَا صَائِمٌ فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَ فَلْيَصُمْ وَمَنْ أَحَبَّ أَنْ يُفْطِرَ فَلْيُفْطِرْ  

[Machine] He heard Muawiyah giving a sermon saying, "Oh people of the city, where are your scholars? I heard the Messenger of Allah ﷺ saying, 'This is the day of Ashura and Allah has not made its fasting obligatory. But I am fasting so whoever likes to fast may do so, and whoever likes to break the fast may do so.'"  

أَنَّهُ سَمِعَ مُعَاوِيَةَ يَخْطُبُ يَقُولُ يَا أَهْلَ الْمَدِينَةِ أَيْنَ عُلَمَاؤُكُمْ؟ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «هَذَا يَوْمُ عَاشُورَاءَ وَلَمْ يَفْرِضِ اللهُ صِيَامَهُ وَأَنَا صَائِمٌ فَمَنْ أَحَبَّ أَنْ يَصُومَ فَلْيَصُمْ وَمَنْ أَحَبَّ أَنْ يُفْطِرَ فَلْيُفْطِرْ»  

[Machine] He informed him that he heard Muawiya while he was preaching to the people on the day of Ashura, saying: "O people of the city, where are your scholars? Indeed, I heard the Messenger of Allah ﷺ saying, 'This is the day of Ashura, and it is not obligatory for you to fast it, but indeed I am fasting.' And he said that, 'So whoever among you wishes to fast, let him fast, and whoever wishes to break his fast, let him break it.'"  

أَخْبَرَهُ أَنَّهُ سَمِعَ مُعَاوِيَةَ وَهُوَ يَخْطُبُ لِلنَّاسِ يَوْمَ عَاشُورَاءَ وَهُوَ يَقُولُ يَا أَهْلَ الْمَدِينَةِ أَيْنَ عُلَمَاؤُكُمْ؟ إِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «هَذَا يَوْمُ عَاشُورَاءَ وَلَمْ يُكْتَبْ عَلَيْكُمْ صِيَامُهُ وَإِنِّي صَائِمٌ» وَهُوَ يَقُولُ ذَلِكَ «فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْ وَمَنْ أَحَبَّ أَنْ يُفْطِرَ فَلْيُفْطِرْ»