[Machine] He called for a cup of water, then performed a light ablution (wudu). Then, he wiped over his sandals and said, "This is how the Prophet ﷺ used to perform ablution for the one who is in a state of purity, as long as he did not nullify it." This indicates that what has been narrated about Ali wiping over his sandals is only in a voluntary ablution, not in an obligatory ablution due to a state that requires it or if he intended to wash his feet in the sandals or if he intended to wipe over his socks and sandals, as well.  

أَنَّهُ دَعَا بِكُوزٍ مِنْ مَاءٍ ثُمَّ تَوَضَّأَ وُضُوءًا خَفِيفًا ثُمَّ مَسَحَ عَلَى نَعْلَيْهِ ثُمَّ قَالَ هَكَذَا وُضُوءُ رَسُولِ اللهِ ﷺ لِلطَّاهِرِ مَا لَمْ يُحْدِثْ وَفِي هَذَا دَلَالَةٌ عَلَى أَنَّ مَا رُوِيَ عَنْ عَلِيٍّ فِي الْمَسْحِ عَلَى النَّعْلَيْنِ إِنَّمَا هُوَ فِي وُضُوءٍ مُتَطَوَّعٍ بِهِ لَا فِي وُضُوءٍ وَاجِبٍ عَلَيْهِ مِنْ حَدَثٍ يُوجِبُ الْوُضُوءَ أَوْ أَرَادَ غَسْلَ الرِّجْلَيْنِ فِي النَّعْلَيْنِ أَوْ أَرَادَ الْمَسْحَ عَلَى جَوْرَبَيْهِ وَنَعْلَيْهِ كَمَا