How to write Arabic words in between English words in Latex

Some packages have to be included in the preamble to support it, and it should be written as shown below:

\documentclass[a4paper,10pt]{article}
%In the preamble section include the arabtex and utf8 packages
\usepackage{arabtex}
\usepackage{utf8}

\begin{document}
%start encoding to unicode
%Note that your layout must support arabic text when compiling
\setcode{utf8}
%To start typing in Arabic use the command arabtext
hello
\<السَلامُ عَليكم ورَحمةُ الله وبَركاته >
arabic
\end{document}