Ishaq ibne Abi Umair was a companion of Imam Jafar e Sadiq (a.s). He wrote several books sitting in the company of the Imam (a.s).
When the ruler of the time heard about this, he sent his troops to capture him. When he was being arrested, his sister knew that her brother would be killed without any inquiry or trial. Instead of pleading with the troops or crying, the girl went quietly into the house and buried all the books, compiled by Ibne Umair, in the courtyard. She wanted thus to prevent the valuable books from the tyrannical ruler. The girl couldn’t even meet her brother. The house was rummaged but no writings could be detected.
Ibne Umair remained incarcerated for 14 long years. The sister always had the fear that if she brought out the books, the sleuths of the ruler might detect her doing it. She wanted to protect the sayings of the Imam (a.s).
When Ibne Umair came home after 14 years of absence, the first thing he asked his sister was about the books. She then dug out the books from the courtyard. Some pages of the books were slightly damaged, but most of the contents were safe.