Al-Kāfi
Hadith 1371ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ شَاذَانَ بْنِ الْخَلِيلِ النَّيْسَابُورِيِّ عَنْ مَعْمَرِ بْنِ عُمَرَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ الْسَّلام) قَالَ يُجْزِئُ مِنَ الْمَسْحِ عَلَى الرَّأْسِ مَوْضِعُ ثَلاَثِ أَصَابِعَ وَكَذَلِكَ الرِّجْلُ.
1. A number of our people have narrated from Ahmad ibn Muhammad from Shadhan ibn Khalil al-Naysaburiy from Mu’ammar ibn ‘Umar who has said the following: “Abu Ja’far (a.s.), has said, ’For wiping the head it is sufficient to wipe a portion of it the size of three fingers and so also is the case of the feet.’”