Herbs that Relieve Food Stagnation

Which herb dissolves stones, for urinary tract stones or gall stones?

There are three major herbs for stones, all of which have Jin in the name: Ji Nei Jin, Jin Qian Cao, and Hai Jin Sha.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 505 [Q866]