Is it permissable for disabled people to procreate?

Let's say one in a married couple or both of them have some sort of mental or physical disability (a serious one perhaps), and reproducing has a high chance of making the offspring suffer from the same disability which might or will lead to the child from suffering extremely throughout its life. Let's say the couple has no empathy and decency at all and decides to reproduce anyways. Is it morally acceptable in Islam to procreate in this case or are there no rules regarding this matter?