Regarding Allaah’s statement, “…and let them not stamp their feet, so as to reveal what they hide from tehir adornment.” [Noor(24):31]
Ibn ‘Uthaymeen says:
“This means that a woman must not strike her foot so as to let it be known what she conceals (from her adornment), such as her ankle bracelets or anything else that she adorns herself with for a man. So is a woman is forbidden (in this aayah) from stamping her feet, for fear of causing fitnah for a man, due to what he hears rom the sound of her ankle-bracelet or its types, then how about exposing the face?
Which of the two is a greater cause for fitnah? That a man hears the sound of tthe ankle-bracelet produced by the foot of a woman, not knowing who she is, nor her beauty nor if she is young or old or if she is unattractive or beautiful. Which of these two is a greater fitnah? This, or that he looks at a woman’s uncovered face that is perhaps beautiful, fair, young, bright, enticing, and which is perhaps beautified with that which attracts fitnah (temptation) and calls for the prohibited look?
Indeed, every man that has an interest in women knows which of the two is a greater fitnah and which is more deserving of being covered and concealed.”
[Taken from “Four Essays On The Obligation Of Veiling” Ch. 2: An Essay On Hijaab, p. 31]