Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: A man came to the service of the Prophet Muhammad (peace be upon him) and said: My sister has passed away and she had not performed Hajj. Should I perform Hajj on her behalf? The Prophet Muhammad (peace be upon him) said: What do you think, if that woman had a debt, would you pay it off? Allah, the Exalted, is most deserving that His dues be paid.