٦ـ أَحْمَدُ بْنُ إِدْرِيسَ عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنْ يَعْقُوبَ بْنِ يَزِيدَ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ الْكُرُّ مِنَ الْمَاءِ أَلْفٌ وَمِائَتَا رِطْلٍ.
6. Ahmad ibn Idris has narrated from Muhammad ibn Ahmad from Ya‘qub ibn Yazid from Ibn Abi ‘Umayr from certain persons of our people who has said the following: “Abu ‘Abd Allah , has said that the quantity of one Kur of water is one thousand and two hundred ritl (a certain measurement).” 