<div dir="ltr">I do not know much about ArabXeTeX. Let's assume the control sequence \allah will produce the word الله. Then you can do this:<br><br>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>\documentclass{article}<br>
\usepackage{fontspec}<br>\usepackage{arabxetex}<br>\newfontfamily\arabicfont[Script=Arab,Mapping=arabicdigits]{<font-name>}<br>\newfontfamily\allahfont[Script=Arabic]{Scheherezadeh}<br>\makeatletter<br>\let\origin@allah=\allah<br>
\def\allah{\allahfont{\origin@allah}}<br>\makeatother<br>\begin{document}<br><br>\end{document}<br>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br>So what this code typesets the main text with the fnt you specify and it typesets the logo of Allah with Scheherezadeh font.<br>
<br>VK<br></div>