\documentclass[12pt]{article}
\usepackage{amsthm,amssymb,amsmath}
\usepackage[all]{xy}
\usepackage{pgf,pgfplots,tikz}
%\pgfplotsset{width=7cm,compat=newest}
\usepackage{xepersian}
\settextfont[Scale=1]{XB Niloofar}

\usetikzlibrary{snakes,arrows,matrix,shapes,backgrounds}

\begin{document}


\begin{tikzpicture}
\matrix (m) [matrix of math nodes , row sep=3em,
column sep=3em, text height=2ex, text depth=0.25ex]
{ A1 & A2 & A3 & A4 & A5 \\
B1 & B2 & B3 & B4 & |[left]| \bigoplus C’ \otimes_R C“ \\
C1 & C2 & C3 & \\};
\path[=, ->]
(m-1-1) edge node [descr] {$\omega$} (m-1-2)
(m-1-3) edge (m-2-5)
(m-1-4) edge (m-2-5)
(m-1-1.205) edge (m-2-2.173)
(m-3-3) edge node[auto] {$\Omega$} node[below,sloped] {$A(x)$}  (m-2-5.south west);
(m-3-3) edge (m-2-4.12);
\node (a) at (0:7) {\refstepcounter{equation}\rl{(\theequation)}}
\end{tikzpicture}
\end{document}