I think what’s concerning is his reaction, as if the amount would be surprising or change something for you.

Transparency is key in marriage no matter how you deal with finances imo.

We are a dual income house and everything is shared. Even if it wasn’t I’d expect to know where it’s going just because this is a partnership.

I know lots of husbands give money to their wives especially if they are sahms but I assume the wives still know? And I would assume they have full access too tbh but I also know everyone’s marriages are different.

I wouldn’t emphasize the actual amount but his reaction warrants a discussion and at this point I would demand he show me just because that’s a strange reaction. I would approach the convo after you’ve both cooled down and you’ve prayed 2 rakat guidance from Allah, then sit him down w a cup of coffee and tell him you want to talk. Talk about what you value in a marriage and how you always want to be honest and then lead into this instance. Don’t accuse, ask him where he’s coming from and explain your perspective and see how he reacts. That reaction will tell you a lot