Pinto Bean Soup with Lap Cheong and 'Forbidden' Rice

1 lb. dry pinto beans
1/2 gallon water
3 lap cheong sausages, rinsed
2 large cubes ham or pork bouillion, or equivalent stock (substitute for water)
1 finely diced pepper
1 finely minced white onion, medium
3 T. vegetable oil
1 c. black ("forbidden") rice, substitute white rice if unavailable
2 T. Kikkoman soy sauce or to taste
3 cloves garlic