[Machine] That he would not come upon it a day but he would be fasting in it, and that happened to be the day of Eid al-Adha or the day of Eid al-Fitr. Ibn Umar said, "You had a good example in the Messenger of Allah ﷺ." [Al-Ahzab 21] The Prophet ﷺ did not fast on the day of Eid al-Adha or the day of Eid al-Fitr, nor did he command their fasting.
أَنْ لَا يَأْتِيَ عَلَيْهِ يَوْمٌ سَمَّاهُ إِلَّا وَهُوَ صَائِمٌ فِيهِ فَوَافَقَ ذَلِكَ يَوْمَ أَضْحَى أَوْ يَوْمَ فِطْرٍ فَقَالَ ابْنُ عُمَرَ {لَقَدْ كَانَ لَكُمْ فِي رَسُولِ اللهِ أُسْوَةٌ} [الأحزاب 21] حَسَنَةٌ لَمْ يَكُنْ رَسُولُ اللهِ ﷺ يَصُومُ يَوْمَ الْأَضْحَى وَلَا يَوْمَ الْفِطْرِ وَلَا يَأْمُرُ بِصِيَامِهِمَا