ذِكْرُ السَّبَبِ الَّذِي مِنْ أَجْلِهِ فَعَلَ ﷺ مَا وَصَفْنَا
The Messenger of Allah ﷺ performed five prayers with the same ablution of the occasion of the capture of Mecca, and he wiped over his socks. ‘Umar said to him(the Prophet): I saw you doing a thing today that you never did. He said: I did it deliberately. (Using translation from Abū Dāʾūd 172)
«صَلَّى رَسُولُ اللَّهِ ﷺ الصَّلَوَاتِ كُلَّهَا يَوْمَ فَتْحِ مَكَّةَ بِوَضُوءٍ وَاحِدٍ وَمَسَحَ عَلَى خُفَّيْهِ» فَقَالَ لَهُ عُمَرُ إِنِّي رَأَيْتُكَ الْيَوْمَ صَنَعْتَ شَيْئًا لَمْ تَكُنْ تَصْنَعُهُ قَبْلَ الْيَوْمِ قَالَ «عَمْدًا فَعَلْتُ يَا عُمَرُ»