doubleimage-arbic.tex

\documentclass{report}
\usepackage{caption}
\usepackage{polyglossia}
\setmainlanguage{arabic}
\newfontfamily\arabicfont[Script=Arabic,Scale=1]{KacstOne}

% https://tex.stackexchange.com/questions/350777/side-by-side-figures-are-reversed-in-lof-bidi-xetex
\newcommand{\dblimg}
  [7][ht]{{%
      \stepcounter{figure}
      \addcontentsline{lof}{section}{\protect\numberline{\thefigure}#4}
      \addtocounter{figure}{-1}
      \begin{figure}[#1]
          \begin{minipage}{0.48\textwidth}\centering
              \includegraphics[width=#2\textwidth]{#3}
              \caption[]{\centering #4}
          \end{minipage}\hfill
          \begin{minipage}{0.48\textwidth}\centering
              \includegraphics[width=#5\textwidth]{#6}
              \caption[#7]{\centering #7}
          \end{minipage}
      \end{figure}
  }}

\begin{document}
\listoffigures
\dblimg{1}{a}{111}
       {1}{b}{222}
\end{document}