"A woman came to the Holy Prophet (peace and blessings be upon him) and said, ' I have given charity on behalf of my dead mother by giving away her female servant.' The Holy Prophet answered, 'You will have its reward [and so will she] but return the female servant so that the inheritance [may be properly divided].' The woman then said, 'She used to owe fasts, can I fast on her behalf' He answered, 'You may fast on her behalf.' The woman then said, 'She did not perform Hajj, can I perform on her behalf' The Holy Prophet answered, 'Yes. You may perform Hajj on her behalf." (Tirmizi)