How does one suffering from the evil eye perform ritual bathing (ghusl): Is it a complete ritual bath, or is it merely washing the areas mentioned in the hadith? Is the inside of the loincloth (izar) considered part of the 'awrah (private parts)? And is performing only ablution (wudu') sufficient, and if so, what is its description in this case?

The Shari'ah commands the one who cast the evil eye (al-'ain) to perform ablution (wudu') or a full ritual bath (ghusl) to repel the harm of the evil eye after it has occurred. Then, the one afflicted (al-ma'in) bathes with the water used by the one who cast the evil eye for their ablution. The evidence for this is what 'A'ishah, may Allah be pleased with her, narrated: "The one who cast the evil eye was commanded to perform ablution, and then the one afflicted would wash themselves with that water." Likewise, there is the hadith of Abu Umamah Sahl ibn Hunaif, who was afflicted by the evil eye from 'Amir ibn Rabi'ah. The Prophet, peace and blessings be upon him, commanded him to perform ghusl, and then the water was poured over Sahl, and he recovered.

The description of this washing is that the one who cast the evil eye is asked to wash their face, hands, elbows, knees, feet, and the inner part of their izar — which is the dangling part of the izar next to the body — into a vessel. Then, this water is poured over the afflicted person from behind them in a single pour.