Paying for one's wife to perform Hajj

Q 2: A woman's husband died before she was able to perform Hajj. (Part No. 21; Page No. 172) She later remarried, but she died after a period of time. Is her second husband obliged to perform Hajj on her behalf? It is said that it is obligatory upon the first and not the second husband.

A 2: Neither the first, nor the second husband is obliged to perform Hajj or `Umrah (lesser pilgrimage) on her behalf.May Allah grant us success. May peace and blessings be upon our Prophet, his family and Companions.