If a woman notices during prayer that some of her hair is showing, must she tuck it in, interrupt the prayer, or complete the prayer?

If a woman's hair becomes uncovered during prayer, her prayer is not invalidated if she promptly covers it. This is because the uncovering of a small amount of 'awrah unintentionally, if immediately covered, does not invalidate the prayer. A woman's hair is 'awrah and must be covered during prayer. According to the Malikis, it is recommended for a woman to repeat the prayer within its prescribed time if her head or limbs become uncovered.