What is the ruling on a man who performed Hajj and committed adultery with a foreign woman three times, and then repented? Is he obligated to perform Hajj again, given his inability, especially since the woman is still trying to tempt him?

Whoever repents with sincere repentance, Allah accepts his repentance. And whoever performed Hajj then committed adultery and repented, he is not required to repeat Hajj. He must stay away from this woman and cut off all relations with her.