1- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ سَمَاعَةَ قَالَ
سَأَلْتُهُ عَنْ شِرَاءِ الطَّعَامِ مِمَّا يُكَالُ أَوْ يُوزَنُ هَلْ يَصْلُحُ شِرَاهُ بِغَيْرِ كَيْلٍ وَلا وَزْنٍ فَقَالَ أَمَّا أَنْ تَأْتِيَ رَجُلا فِي طَعَامٍ قَدِ اكْتِيلَ أَوْ وُزِنَ فَيَشْتَرِيَ مِنْهُ مُرَابَحَةً فَلا بَأْسَ إِنْ أَنْتَ اشْتَرَيْتَهُ وَلَمْ تَكِلْهُ أَوْ تَزِنْهُ إِذَا كَانَ الْمُشْتَرِي الأوَّلُ قَدْ أَخَذَهُ بِكَيْلٍ أَوْ وَزْنٍ فَقُلْتَ عِنْدَ الْبَيْعِ إِنِّي أُرْبِحُكَ فِيهِ كَذَا وَكَذَا وَقَدْ رَضِيتُ بِكَيْلِكَ أَوْ وَزْنِكَ فَلا بَأْسَ.
1. A number of our people have narrated from Ahmad ibn Muhammad from ‘Uthman ibn ‘Isa from Sama‘ah who has said the following:
“I once asked him (the Imam) 
, about buying food which is exchanged by means of weighing or measuring, if such items can be bought without weighing or measuring. He (the Imam) said, ‘If you find a man with food which he has weighed or measured and it is bought from him with profit for him, it is not harmful if you buy it without weighing and measuring. If the first buyer had bought it by weighing and measurement and you say when buying, “I give you such and such amount of profit and I accept your weighing and measuring then it is not harmful.’””
