The Ruling on Delaying Making Up Fasts and Supplication After Prayer

Question:
For a woman or a girl, there is no harm in leaving it in place for the sake of leniency and need. However, if it is for the sake of adornment and beauty, then beauty and adornment lie in leaving it in place or removing it, because it is part of a woman’s beauty. And what she has been accustomed to doing with the intention of [adornment] remains an imitation of customs that exist on the night. This is among the customs that exist on the night, and it falls under the category of voluntary acts. This is the common practice. May Allah reward you with good. A relative of mine, who is fifteen years old, was lax in the first ten days of Ramadan and did not fast them. When her mother learned that fasting was obligatory upon her, she ordered her to fast the last twenty days. What is your advice regarding those ten days that she left? May Allah reward you with good?

Answer:
It is obligatory for her to make them up.