No soaking the beans is required! (If you do soak, reduce water by 1 cup for the recipe)
Set seasoning packet aside for the last hour of cooking. Rinse and sort through the beans, check for any unwanted debris and discard.
Add rinsed beans, onion, pepper, celery, chicken stock, and water into a 6 quart slow cooker. (The seasoning packet, tomatoes and meats will be added later.)
Stir to combine. Place lid on slow cooker and cook on high and cook for 6 hours.
Check beans for doneness. If tender, add sausage, chicken, bacon, tomatoes, and contents of seasoning packet. Cook on high for 1 additional hour, with lid on. Keep warm until ready to serve.
Serve with a scoop of long grain rice and sprinkle with fresh parsley.