Purity: Immediacy of Prayer After Purification

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 411:

After a woman who has slight istiḥāḍah performs wuḍūʾ, and after a woman who has medium istiḥāḍah performs ghusl and wuḍūʾ, and after a woman who has excessive istiḥāḍah performs ghusl, she must immediately engage in performing her obligatory prayers [for which the time is due] except in the two cases that were mentioned in Rulings 394 and 407. However, there is no problem if she says adhān and iqāmah before prayers, and [when she is performing prayers,] she can also perform recommended acts of the prayer, such as qunūt.

-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)