٣- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ عَلِيِّ بْنِ مَيْمُونٍ الصَّائِغِ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) إِنِّي أَتَقَبَّلُ الْعَمَلَ فِيهِ الصِّيَاغَةُ وَفِيهِ النَّقْشُ فَأُشَارِطُ النَّقَّاشَ عَلَى شَرْطٍ فَإِذَا بَلَغَ الْحِسَابُ بَيْنِي وَبَيْنَهُ اسْتَوْضَعْتُهُ مِنَ الشَّرْطِ قَالَ فَبِطِيبِ نَفْسٍ مِنْهُ قُلْتُ نَعَمْ قَالَ لا بَأْسَ. 
3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Ali ibn Maymun al-Sahgh (jeweler) who has said the following: “Upon my asking abu ‘Abd Allah , about a goldsmith work in which there is engraving and I stipulate with an engraver; but when it is time to finalize our account, I ask him to reduce from what was stipulated. He (the Imam) asked, ‘Is it without compulsion on his part?’ I replied, ‘Yes, it is without compulsion.’ He (the Imam) said, ‘It is not unlawful.’” 