سَأَلْتُ أَبَا جَعْفَرٍ ع عَنْ قَوْلِهِ تَعَالَى ائْتُونِي بِكِتابٍ مِنْ قَبْلِ هذا أَوْ أَثارَةٍ مِنْ عِلْمٍ إِنْ كُنْتُمْ صادِقِينَ[4] قَالَ عَنَى بِالْكِتَابِ التَّوْرَاةَ وَ الْإِنْجِيلَ وَ أَثَارَةٍ مِنْ عِلْمٍ فَإِنَّمَا عَنَى بِذَلِكَ عِلْمَ أَوْصِيَاءِ الْأَنْبِيَاءِ ع.
Muhammad ibn Yahya has narrated from ibn Mahbub from Jamil ibn Salih from abu ‘Ubayda who has said the following: “Once I asked abu Ja‘far, recipient of divine supreme covenant, about the meaning of the words of Allah, the Most High: ‘. . . bring me a Book, revealed before this Quran, or anything remaining of knowledge