Purity: The Obligatory Ghusls
Practical Laws of Islam as per the teachings of Ayatullah Sistani
There are seven obligatory ghusls:
1. The ghusl for ritual impurity (janābah);
2. The ghusl for menstruation (ḥayḍ);
3. The ghusl for lochia[50] (nifās);
4. The ghusl for irregular blood discharge (istiḥāḍah);
5. The ghusl for touching a corpse (mass al‑mayyit);
6. The ghusl given to a corpse (mayyit);
7. A ghusl that becomes obligatory on account of a vow (nadhr), oath (qasam), or suchlike.
If there is a total solar eclipse or a total lunar eclipse and a mukallaf intentionally (ʿamdan) does not perform the prayer of signs (ṣalāt al‑āyāt) in its prescribed time, then based on obligatory precaution, he must perform ghusl before he makes it up [i.e. when he performs ṣalāt al‑āyāt belatedly (qaḍāʾ), he cannot do so with wuḍūʾ; rather, he must perform ghusl first and then perform the prayer with that ghusl].
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)


