After dyeing your hair (or having it done by colorist), do you wait to wash your hair for a few days, or wash it normally on schedule, as usual?

Whether you go to a salon, or dye your hair yourself, do you wash your hair the next day or purposely wait a few days to wash it?

I wash it the next day, as usual, with shampoo and conditioner formulated for color-treated hair. Some of my friends wait a few days to wash their hair.

I am curious what the collective does.