Chapter on narrating books and Hadith (The virtue of writing and its preservation)

11. A number of our people has narrated from Ahmad ibn Muhammad ibn Khalid al-Barqi from certain persons of his people from abu Sa‘id al-Khaybari from al-Mufaddal ibn ‘Umar who has said the following. “Abu ‘Abdallah عليه السلام said, ‘You must write down (Hadith) and spread your knowledge among your brethren. If you will die your children will inherit your books. A time will come when people will face chaos and they will find no comfort but with their books.’”