 his saying it covers the pubic bone and the hip and wraps around the entire thigh from the inside and from behind. the reason for that is two things one of them is that due to the strength of its action it needs to be attached to very large parts.
قوله وتجلل عظم العانة والورك، وتلتف على الفخذ كله من داخل ومن خلف سبب ذلك أمران أحدها أنها لقوة فعلها تحتاج أن تكون تشبثها بأجزاء كبيرة جدا.