If it's within an hour or 2 I used to give it again but longer than that nope
If the breast milk is left out at room temp my limit is 6 hours but usually if you put it in the fridge it lasts a bit longer
I would always put it in the fridge and use it for the next bottle which would be within 2-3 hours
I thought this article had a lot of good info on storing/reusing breast milk and the actual concerns with real data: https://parentdata.org/breast-milk-storage/