Al-Kāfi - Volume 6 > Wudu (washing hands clean) before and after Food
Hadith #1

عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ الْأَشْعَرِيِّ عَنِ ابْنِ الْقَدَّاحِ عَنْ أَبِي عَبْدِ اللَّهِ ( عليه السلام ) قَالَ مَنْ غَسَلَ يَدَهُ قَبْلَ الطَّعَامِ وَ بَعْدَهُ عَاشَ فِي سَعَةٍ وَ عُوفِيَ مِنْ بَلْوَى فِي جَسَدِهِ .

1. A number of our people have narrated from Sahl ibn Ziyad from Ja‘far ibn Muhammad al-Ash‘ariy from ibn al-Qaddah who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, has said, ‘One who washes his hand before and after food, lives a rich life and remains safe from troubles in his body.”’