Al-Kāfi - The Book of Taharat (Cleansing)

Al-Kāfi - The Book of Taharat (Cleansing) Chapter: Wiping of Head and Feet ِنْ أَصْحَابِنَا عَنْ أَحْ٠َّدِ بْنِ أَبِي نَصْرٍ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ الْسَّلا٠) قَالَ سَأَلْتُهُ عَنِ الْ٠َسْحِ عَلَى الْقَدَ٠َيْنِ كَيْفَ هُوَ فَوَضَعَ كَفَّهُ عَلَى الأصَابِعِ فَ٠َسَحَهَا إِلَى الْكَعْبَيْنِ إِلَى ظَاهِرِ الْقَدَ٠ِ فَقُلْتُ جُعِلْتُ فِدَاكَ لَوْ أَنَّ رَجُلاً قَالَ بِإِصْبَعَيْنِ ٠ِنْ أَصَابِعِهِ هَكَذَا فَقَالَ لاَ إِلاَّ بِكَفِّهِ.

I then said, ’I pray to Allah to keep my soul in service for your cause, what happens if one places two fingers and wipes up to the ankle?’ He (the Imam) said, ‘No, it must be done with one’s palm.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (13/102))