That was a day on which the people of pre-Islamic days used to observe fast. So he who amongst you likes to observe fast should do so, and he who does not like it should abandon it.  

أَنَّهُ ذُكِرَ عِنْدَ رَسُولِ اللَّهِ ﷺ يَوْمُ عَاشُورَاءَ فَقَالَ رَسُولُ اللَّهِ ﷺ كَانَ يَوْمًا يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْهُ وَمَنْ كَرِهَ فَلْيَدَعْهُ  

“That was a day when the people of the Ignorance used to fast. So whoever among you wants to fast may do so, and whoever does not want to may leave it.”  

أَنَّهُ ذُكِرَ عِنْدَ رَسُولِ اللَّهِ ﷺ يَوْمُ عَاشُورَاءَ فَقَالَ رَسُولُ اللَّهِ ﷺ كَانَ يَوْمًا يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْهُ وَمَنْ كَرِهَهُ فَلْيَدَعْهُ  

“That was a day when the people of the Ignorance used to fast. So whoever among you wants to fast may do so, and whoever does not want to may leave it.” (Using translation from Ibn Mājah 1737)   

قَالَ رَسُولُ اللَّهِ ﷺ «يَوْمُ عَاشُورَاءَ يَوْمٌ كَانَتْ تَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْهُ وَمَنْ كَرِهَهُ فَلْيَدَعْهُ»  

“That was a day when the people of the Ignorance used to fast. So whoever among you wants to fast may do so, and whoever does not want to may leave it.” (Using translation from Ibn Mājah 1737)  

أَنَّهُ ذُكِرَ عِنْدَ رَسُولِ اللهِ ﷺ يَوْمُ عَاشُورَاءَ فَقَالَ رَسُولُ اللهِ ﷺ «كَانَ يَوْمًا يَصُومُهُ أَهْلُ الْجَاهِلِيَّةِ فَمَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَهُ فَلْيَصُمْهُ وَمَنْ كَرِهَهُ فَلْيَدَعْهُ»  

"مَنْ أَحَبَّ مِنْكُمْ أَنْ يَصُومَ يَوْمَ عَاشُورَاءَ فَليَصُمْهُ، وَمَنْ لَمْ يُحِبَّ فَليَدَعْهُ".