Per consensus, please disable the possibility of creating community books (those that are created on the Wikipedia namespace) on Farsi Wikipedia.
Additionally, please remove the "Create a book" link from the sidebar of Farsi Wikipedia as per consensus.
Change 768718 had a related patch set uploaded (by 4nn1l2; author: 4nn1l2):
[operations/mediawiki-config@master] fawiki: Disable creating community books and remove "Create a book" link from sidebar
Change 768718 merged by jenkins-bot:
Mentioned in SAL (#wikimedia-operations) [2022-03-07T14:16:06Z] <urbanecm@deploy1002> Synchronized wmf-config/InitialiseSettings.php: 8f20ec9f5bd7f507580d8e8860116e3b1842ac9a: fawiki: Disable creating community books and remove "Create a book" link from sidebar (T303173) (duration: 00m 49s)