There exist several Judeo-Arabic texts, Arabic written in Hebrew script with Arabic vowels and other marks. One well known is The Guide to the Perplexed.
See a modern transcript at https://he.wikisource.org/wiki/%D7%9E%D7%95%D7%A8%D7%94_%D7%A0%D7%91%D7%95%D7%9B%D7%99%D7%9D_(%D7%9E%D7%A7%D7%95%D7%A8)/%D7%9E%D7%91%D7%95%D7%90. A manuscript: http://web.nli.org.il/sites/NLI/Hebrew/digitallibrary/pages/viewer.aspx?presentorid=MANUSCRIPTS&docid=PNX_MANUSCRIPTS000043324-1#|FL36876376 Best Regards, Jonathan Rosenne
