Babi's were ordered to destroy all non-Babi books

As a token of grace from God, the Revealer of this Most Great Announcement, We have removed from the Holy Scriptures and Tablets the law prescribing the destruction of books.

http://reference.bahai.org/en/t/b/TB/tb-4.html

Denis MacEoin in his article states :

"the mass slaughter of non-believers, the destruction of books and shrines, compulsory marriage at the age of 11, the confiscation of the property of unbelievers, and the prohibition on travel except for purposes of trade."

https://bahai-library.com/maceoin_deconstructing_sharia

Seena Fazel also write about this here:

https://bahai-library.com/fazel_inheritance_bsr

Todd Lawson also writes about it here:

http://wilmetteinstitute.org/wp-content/uploads/2016/08/2012-Lawson-Return-of-Joseph-scan.pdf