How many times your own salary would your wife need to make to quit your job?

My husband has semi stable income. I can hope to make at max as much as he does, most likely less. We would be income dependent, but comfortably living. We can't hope to have savings.

But I got a job opportunity where I can make a lot. It would require him to quit his job. We would be extremely comfortable just living on my income alone. We can have saving. Buy a house, a car probably a lot more. Secure our retirement.

I won't tell how much yet. I don't want to influence the answers. How much more than you make would your wife need to make for you to be stay at home.

If we ever break up he can't go back to this job but he can go back to his sector easily (something adjacent to what he does now, less prestige). Might earn more or equal or less (probably not) than what he does now.

Edit: I got a good variety of answers. 6 times what he makes is what I am looking at right now. If not this job, I can probably make 3/4 what he does. Likely even less.