What is idea of islam about contraception with the reff of hadis and quran

Assalamu alikum,

Taken from islam-qa site:

Contraception is permitted under the following conditions:
Mutual agreement of both husband and wife. It does not cause harm. It is not be practiced on a permanent basis, but rather for a temporary period (such as two years until the breastfeeding of the current baby is completed, for example).

Yea I agree with you but if the husband and wife cann't afford children at the current time because they are having money troubles then they are also allowed to use contraception but it should not be a permanent thing.