Is it permissible to appoint a proxy for the tawaf of ifadah for a woman who left it behind due to menstruation?

Question:
May Allah reward you and bless you. This sister from Egypt says that she started menstruating before the tawaf of ifadah in her Hajj and traveled without performing the tawaf of ifadah. She has a brother who works in Riyadh. She asks: Can she appoint this brother as a proxy? And what is required of her?

Answer:
The tawaf of ifadah remains obligatory upon her; because it is a pillar of Hajj, and her Hajj is not complete without it. So she must return with her mahram (male guardian) when she is pure from menstruation, and perform the tawaf of ifadah and the sa'y (walking between al-Safa and al-Marwah) after it, then return to Riyadh, Riyadh. And if intercourse occurred with her during this period before her return for the tawaf of ifadah, then she owes the fidyah (ransom payment), which is to slaughter a sheep in Makkah and distribute it to the poor. So she returns, performs the tawaf of ifadah, performs the sa'y, and slaughters the sheep for the intercourse, then returns to Riyadh. Yes.