Now the dye will need to set. Time to get a snack and let the garment soak.
At the least, wait at eight hours before rinsing. Letting it sit overnight is best. To keep the dye moist, wrap your garment in plastic wrap. You don’t want the dye to dry out or it will not properly react with the garment fibers.
When you're done waiting, come back and wash out the dye.