 ١٦ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عُثْمَانَ بْنِ عِيسَى قَالَ سَأَلْتُ أَبَا الْحَسَنِ مُوسَى (عَلَيْهِ السَّلام) عَنِ الْقِيَاسِ فَقَالَ مَا لَكُمْ وَالْقِيَاسَ إِنَّ الله لا يُسْأَلُ كَيْفَ أَحَلَّ وَكَيْفَ حَرَّمَ.
 16. A number of our people has narrated from Ahmad ibn Muhammad from ‘Uthman ibn ‘Isa who has said the following. “I asked (Imam) abu al-Hassan Musa  about the use of analogy and the Imam said, ‘What do you have to do with analogy? Allah will not ask how it was made lawful or unlawful.’”