Arabic (Original)
حَدَّثَنَا سُفْيَانُ عَنِ الزُّهْرِيِّ عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ مُعَاوِيَةَ سَمِعَ مُعَاوِيَةَ يَقُولُ بِالْمَدِينَةِ عَلَى مِنْبَرِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَيْنَ عُلَمَاؤُكُمْ يَا أَهْلَ الْمَدِينَةِ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي هَذَا الْيَوْمِ يَوْمِ عَاشُورَاءَ وَهُوَ يَقُولُ مَنْ شَاءَ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْهُ.
English Translation
Sufyan narrated to us from al-Zuhri from Humayd ibn 'Abd al-Rahman ibn Mu'awiya, who heard Mu'awiya say in Medina, upon the pulpit of the Messenger of Allah, peace and blessings be upon him: 'Where are your scholars, O people of Medina? I heard the Messenger of Allah, peace and blessings be upon him, on this day, the Day of 'Ashura, say: Whoever among you wishes to fast it, let him fast it.'