لِلْغُسْلِ صَاعٌ مِنْ مَاءٍ وَ لِلْوُضُوءِ مُدٌّ مِنْ مَاءٍ وَ صَاعُ النَّبِيِّ ص خَمْسَةُ أَمْدَادٍ وَ الْمُدُّ وَزْنُ مِائَتَيْنِ وَ ثَمَانِينَ دِرْهَماً وَ الدِّرْهَمُ سِتَّةُ دَوَانِيقَ وَ الدَّانِقُ وَزْنُ سِتِّ حَبَّاتٍ وَ الْحَبَّةُ وَزْنُ حَبَّتَيْنِ مِنْ شَعِيرٍ مِنْ أَوْسَاطِ الْحَبِّ لَا مِنْ صِغَارِهِ وَ لَا مِنْ كِبَارِهِ[2]
Hadith.69 - Abu Al-Hasan Imam Musa ibn Jafar Al-Kadhim (as) said: "For ghusl (ritual washing), a saa' of water is required, and for wudu (ablution), a mud of water is sufficient. The saa' of The Prophet (sw) is five amdad (measures), and the mud weighs two hundred and eighty dirhams. One dirham is six danaq (small unit