one => الأول and so on.
In english, a solution exist:
Code: Select all
\usepackage{fmtcount,etoolbox}
\makeatletter
\patchcmd{\@makechapterhead}{\thechapter}{\Numberstring{chapter}}{}{}
\patchcmd{\chaptermark}{\thechapter}{\NUMBERstring{chapter}}{}{}
\makeatother
Code: Select all
\documentclass[12pt,english]{book}
\usepackage{fancyhdr}
\usepackage{polyglossia}
\setmainlanguage[numerals=maghrib]{arabic}
\setotherlanguage{english}
\newfontfamily\arabicfont[Script=Arabic,Scale=1.5]{Arabic Typesetting}
\pagestyle{fancy}
\begin{document}
\selectlanguage{arabic}
\chapter{مقدمة}
\end{document}