٨ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ مُحَمَّدِ بْنِ عِيسَى عَنْ عَلِيِّ بْنِ بِلالٍ قَالَ كَتَبْتُ إِلَى الرَّجُلِ (عَلَيْهِ السَّلاَم) أَسْأَلُهُ عَنِ الْفِطْرَةِ وَكَمْ تُدْفَعُ قَالَ فَكَتَبَ سِتَّةُ أَرْطَالٍ مِنْ تَمْرٍ بِالْمَدَنِيِّ وَذَلِكَ تِسْعَةُ أَرْطَالٍ بِالْبَغْدَادِيِّ.
8. A number of our people have narrated from Muhammad ibn ‘Isa from Ali ibn Bilal who has said the following: “I once wrote to the man (the Imam) , asking about the amount of al-Fitrah. He (the Imam) wrote the answer, ‘It is six Artal of dates by al-Madiniy Artal which is nine Artal by al- Baghdadiy ones.”’ 