Then the Almighty’s words, “and let them not stamp their feet lest the adornment they conceal become known” (al-Nūr 31), indicate that women are likewise obliged to cover their feet. For if a woman were allowed to expose the ornament she keeps hidden—namely, her anklets—she could have shown it plainly and would not have needed to stamp her foot. She could not do so, however, because such open disobedience to the Sacred Law was unheard of in the Prophetic era; instead, a woman would resort to striking the ground with her foot so that men might notice the adornment she had concealed. God therefore forbade them from that practice. Based on what we have clarified, Ibn Ḥazm said in al-Muḥallā 3/216: “This text proves that the feet and shins are among the parts that must be concealed and may not be displayed.”
This is further supported by the Sunnah. Ibn ʿUmar ﵁ reported that the Messenger of Allah ﷺ said, “Whoever lets his garment trail out of arrogance, Allah will not look at him on the Day of Resurrection.” Umm Salamah asked, “How should women deal with their hems?” He answered, “They may lower them a handspan.” 1 She replied, “Then their feet will still be uncovered.” He said, “Let them lower them a forearm’s length, and not exceed that.” Al-Tirmidhī recorded it (3/47) and remarked, “This ḥadīth is ḥasan ṣaḥīḥ.” 2