 ١٣ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ أَبِي نَصْرٍ قَالَ كَتَبْتُ إِلَى ابي جعفر (عَلَيْهِ السَّلام) الْخُمُسُ أُخْرِجُهُ قَبْلَ الْمَئُونَةِ أَوْ بَعْدَ الْمَئُونَةِ فَكَتَبَ بَعْدَ الْمَئُونَةِ.
 13. A number of our people has narrated from Ahmad ibn Muhammad from ibn abu Nasr who has said the following. “I wrote to abu Ja‘far , “Is al-Khums paid before or after deducting the expenses?” He wrote back in answer, “It is paid after the deduction of the expenses.”