Why should women be covered during prayers?
God is aware of everything at all times and has no meaning for him, hidden or hidden. He is not illegitimate with his servants either, but man sees himself worshiping in the presence of God and speaks to him, in which case he must wear the most appropriate clothes in his presence. It is clear that the most suitable dress for a woman is the perfect dress; That is, the clothes that are a sign of his chastity and purity and reflect his best moods. Only such a dress is worthy of worship.
Man goes to God in prayer, and while the angels of the Divine Throne are present, he worships God in an official assembly. Therefore, since prayer is in fact a presence and a burden to the door of the Lord of the worlds, in this assembly the more complete, clean and fragrant the clothes are, the more desirable it is.
Imam Sadiq (AS) says: "Worship God as if you see him, if you do not see him, he will see you".