Sleep training question

Hey mamas! I have a 9 month old who I have been attempting sleep training ( Ferber method). I got him to the point he barely cries when I’m putting him to sleep at night. He has the ability to settle himself ! He does a 7pm-2 or 3am stretch every night. My question...when do I drop the night feeds when sleep training ? Do I settle him the same way ( I pat his back soothing him that way) or do I feed him after that long stretch? ( I always am afraid he’s hungry lol) Any input would be super helpful :):)