Does a brother commit a sin by boycotting his sister if she persists in committing sins?

Question:
Honorable Shaykh, may Allah grant you success. This questioner says: If my sister is boycotting me because I frequently rebuke her, and she does whatever sins she pleases without any restraint, do I commit a sin because of her and her doing of these wrongs? Knowing that my father is alive but incapacitated?

Answer:
Do not persist in advising her and calling her to Allah, perhaps Allah will guide her, and if not, at least you have cleared yourself of responsibility for her. Yes.