[Machine] The Prophet ﷺ commanded the fasting of Ashura and said: "Whoever is fasting, let him complete his fast, and whoever is not fasting, let him complete the rest of his day."  

أَنَّ النَّبِيَّ ﷺ أَمَرَ بِصِيَامِ عَاشُورَاءَ فَقَالَ «مَنْ كَانَ صَائِمًا فَلْيُتِمَّ صَوْمَهُ وَمَنْ لَمْ يَكُنْ صَائِمًا فَلْيُتِمَّ بَقِيَّةَ يَوْمِهِ»  

Umm Aban, daughter of al-Wazi' ibn Zari', quoting his grandfather, who was a member of the deputation of AbdulQays, said: When we came to Medina, we raced to be first to dismount and kiss the hand and foot of the Messenger of Allah ﷺ. But al-Mundhir al-Ashajj waited until he came to the bundle of his clothes. He put on his two garments and then he went to the Prophet ﷺ. He said to him: You have two characteristics which Allah likes: gentleness and deliberation. He asked: Have I acquired them or has Allah has created (them) my nature? He replied: No, Allah has created (them) in your nature. He then said: Praise be to Allah Who has created in my nature two characteristics which Allah and His Apostle like. (Using translation from Abū Dāʾūd 5225)   

عَنْ جَدِّهَا الزَّارِعِ وَكَانَ فِي وَفْدِ عَبْدِ الْقَيْسِ قَالَ لَمَّا قَدِمْنَا الْمَدِينَةَ جَعَلْنَا نَتَحَادَرُ مِنْ رَوَاحِلِنَا فَنُقَبِّلُ يَدَيِ النَّبِيِّ ﷺ وَرِجْلَيْهِ وَانْتَظَرَ الْمُنْذِرُ الْأَشَجُّ حَتَّى أَتَى عَيْبَتَهُ فَلَبِسَ ثَوْبَهُ ثُمَّ أَتَى النَّبِيَّ ﷺ فَقَالَ لَهُ النَّبِيُّ ﷺ «إِنَّ فِيكَ لَخَلَّتَيْنِ يُحِبُّهُمَا اللهُ الْحِلْمُ وَالْأَنَاةُ» قَالَ يَا رَسُولَ اللهِ أَنَا أَتَخَلَّقُ بِهِمَا أَمِ اللهُ جَبَلَنِي عَلَيْهِمَا؟ فَقَالَ لَهُ النَّبِيُّ ﷺ «بَلِ اللهُ جَبَلَكَ عَلَيْهِمَا» فَقَالَ الْمُنْذِرُ الْحَمْدُ لِلَّهِ الَّذِي جَبَلَنِي عَلَى خَلَّتَيْنِ يُحِبُّهُمَا اللهُ وَرَسُولُهُ وَيُقَالُ اسْمُ الْأَشَجِّ عَائِذُ بْنُ عَمْرٍو ذَكَرَهُ أَبُو دَاوُدَ الطَّيَالِسِيُّ عَنْ مَطَرِ بْنِ عَبْدِ الرَّحْمَنِ بِهَذَا الْإِسْنَادِ حَدَّثَنَا الْحَضْرَمِيُّ عَنْ مَحْمُودِ بْنِ عَبْدَةَ عَنْ أَبِي دَاوُدَ