Does a rich husband have to sponsor his wife’s Hajj?

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
There is a wife who cannot afford to go for Hajj, but her husband is rich. Is he Islamically obliged to pay for her Hajj?.
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
He entered ihraam for Hajj but was prevented from entering Makkah
He is helping his parents to do Hajj and he has not yet done Hajj himself

Answer:
Praise be to Allaah.

The husband is not Islamically obliged to pay for his wife’s Hajj, even if he is rich, rather that comes under the heading of kind treatment, and she is not obliged to do Hajj because she cannot afford it. 

And Allaah is the Source of strength. May Allaah send blessings and peace upon our Prophet Muhammad and his family and companions. End quote. 

Standing Committee for Academic Research and Issuing Fatwas 

Shaykh ‘Abd al-‘Azeez ibn ‘Abd-Allaah ibn Baaz, Shaykh ‘Abd al-Razzaaq ‘Afeefi, Shaykh ‘Abd-Allaah ibn Qa’ood. 

Fataawa al-Lajnah al-Daa’imah li’l-Buhooth al-‘Ilmiyyah wa’l-Ifta (11/35). 

It also says in Fataawa al-Lajnah al-Daa’imah (11/94): 

The husband is not obliged to pay for his wife’s Hajj as he is obliged to pay for her food, clothing and shelter, but doing so comes under the heading of kind treatment and good manners, and she is entitled to the same maintenance when travelling for Hajj as she is when staying at home. End quote. 

Shaykh ‘Abd al-‘Azeez ibn ‘Abd-Allaah ibn Baaz, Shaykh ‘Abd al-Razzaaq ‘Afeefi, Shaykh ‘Abd-Allaah ibn Qa’ood.

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
Hajj at the expense of a government department
Which of them should be given precedence: having children or doing the obligatory Hajj?
Should he perform the obligatory Hajj or give the money in charity to his neighbour who is poor?
He entered ihraam for Hajj but was prevented from entering Makkah
He is helping his parents to do Hajj and he has not yet done Hajj himself

Recommended answers for you:
EvidenceProhibiting of Mixing of Men and Women
The degrees and levels of Paradise and Hell, and the deeds that take one to them
Husband and wife taking a bath together and looking at one another’s private parts
What is to be said in the Tashahhud of a two-rak’ah prayer?
Praying in a moving vehicle