Purity: Making Up Missed Prayers (Qaḍāʾ)
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 430:
If a mustaḥāḍah wants to make up qaḍāʾ prayers, then for each prayer she must do everything that is obligatory for her for performing prayers within their prescribed time (adāʾ); and based on obligatory precaution, for qaḍāʾ prayers, she cannot suffice with the things that she has done for adāʾ prayers.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)