أبي ومحمد بن الحسن - رحمهما الله - قالا: حدثنا أحمد بن إدريس، ومحمد بن يحيى العطار، عن محمد بن أحمد، عن علي بن محمد، عن رجل، عن سليمان بن حفص المروزي قال: قال أبو الحسن عليه السلام: الغسل صاع من ماء والوضوء مد من ماء وصاع النبي صلى الله عليه وآله خمسة أمداد والمد وزن مائتي وثمانين درهما والدرهم وزن ستة دوانيق والدانق ستة حبات والحبة وزن حبتي شعير من أوساط الحب لا من صغاره ولا من كباره.
1.	My father and Muhammed bin Hasan, may Allah grant them both mercy, both said: We were told by Ahmad bin Idrees, and Muhammed bin Yahya al-‘Attar, from Muhammed bin Ahmad, from Ali bin Muhammed, from a man, from Sulayman bin Hafs al-Marouzi, that he said: Abu’l-Hasan, peace be upon him, said: Ghusl [1] is (performed with) a ssaa’ of water, and Wudu is (performed with) a mudd of water. The ssaa’ of the Prophet, Allah’s blessings be upon him and his Family, is (consisting of) five mudds, and a mudd is the weight of two hundred and eighty dirhams, and one dirham is the weight of six dawaneeq  [2], and one daniq is (consisting of) six kernels, and one kernel is (consisting of) two seeds of barley, from the average seeds, not from their small ones nor big ones.