13- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ أَبِي وَلادٍ الْحَنَّاطِ قَالَ
سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنِ الرَّجُلِ يَكُونُ لَهُ غَنَمٌ يَحْلُبُهَا لَهَا أَلْبَانٌ كَثِيرَةٌ فِي كُلِّ يَوْمٍ مَا تَقُولُ فِيمَنْ يَشْتَرِي مِنْهُ الْخَمْسَمِائَةِ رِطْلٍ أَوْ أَكْثَرَ مِنْ ذَلِكَ الْمِائَةَ رِطْلٍ بِكَذَا وَكَذَا دِرْهَماً فَيَأْخُذُ مِنْهُ فِي كُلِّ يَوْمٍ أَرْطَالا حَتَّى يَسْتَوْفِيَ مَا يَشْتَرِي مِنْهُ قَالَ لا بَأْسَ بِهَذَا وَنَحْوِهِ.
13. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Mahbub from abu Wallad al-Hannat who has said the following: “This is concerning my question before abu ‘Abd Allah 
, about the case of a man saying,
‘He has sheep that milks and the milk is abundant every day, if one can buy from him five hundred Ritl (a certain unit of measurement) or more and every one hundred Ritl for so and so much dirham then every day take certain Ritl until the deal is complete.’ He (the Imam) said, ‘It is not unlawful (for this) and similar things.’”
