10ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ الْحَسَنِ بْنِ عَلِيِّ بْنِ فَضَّالٍ عَنِ ابْنِ بُكَيْرٍ عَنْ عُبَيْدِ بْنِ زُرَارَةَ قَالَ قَالَ أَبُو عَبْدِ الله (a.s) احْتَفِظُوا بِكُتُبِكُمْ فَإِنَّكُمْ سَوْفَ تَحْتَاجُونَ إِلَيْهَا.


10. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from al-Hassan ibn Ali ibn Faddal from ibn Bukayr from ’Ubayd ibn Zurara who has said the following. “Abu ‘Abdallah (a.s) said, ‘You must preserve your books because you will soon need them.’”