Chapter on Etiquettes of Causes Requiring Purification
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 3
فَأَمَّا مَا رَوَاهُ مُحَمَّدُ بْنُ أَبِي عُمَيْرٍ قَالَ رُوِيَ لِي عَنْ عَبْدِ اَللَّهِ يَعْنِي اِبْنَ اَلْمُغِيرَةِ يَرْفَعُهُ إِلَى أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ :«أَنَّ اَلْكُرَّ سِتُّمِائَةِ رِطْلٍ».
As for what was narrated by Muhammad bin Abi Umayr, who said: It was narrated to me from Abdullah (meaning Ibn Al-Mughirah), who raised it to Abu Abdullah عليه السلام, that:
Imam عليه السلام said: 'A kurr is 600 ratls.'
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 45
- Ṣaḥīḥ al-Tahdhīb