فالوجه في هذا الخبر رفع الحظر عمن لم يحل ازراره لان فعل ذلك من المسنونات دون الواجبات.
The explanation of this report is that it removes the prohibition for one who does not unfasten his buttons, as doing so is among the recommended (Mustahabbat) acts, not obligatory (Wajibat) ones.
