He wants to limit having children because he is poor

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Check below answers in case you are looking for other related questions:
Is it permissible to use birth control because one is afraid to have children due to the corruption of society?
Encouragement to have a lot of children

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Related Answers:
What is the ruling on family planning and temporarily using contraceptives to space children in order to give them a proper upbringing, or for other reasons?
After her husband died she found out that he was a Raafidi, and his behaviour was bad
Improving Relationship With Husband
Is it permissible to use birth control because one is afraid to have children due to the corruption of society?
Encouragement to have a lot of children

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She has gone off him and doesn't want to have any intimacy with him in bed