Sometimes he attaches purification, I mean its obligation, to His name, Al-Batin, and says that Al-Batin is a place that is far from finding the attributes of majesty it deserves for its inner beings, so what is necessary is to purify the Truth in His name Al-Batin due to the effect of the veil over which He was judged to be inward and unperceivable, and God is Most High and Most Exalted to be surrounded by a veil, so it is obligatory to purify it. In terms of its name, the inner, this is one of the aspects of the one who is obligated to wipe the inner part of the socks, such as Ashhab, and it is recommended to wipe the upper part, which is the outer name.