Sutra of the Merit and Virtue of the Past Vows of Medicine Master Vaidurya Light Tathagata.
Source: Reading based on the sutra text published on the website of the City of Ten Thousand Buddhas & Medicine Master Sutra, translated and published by the Buddhist Text Translation Society (BTTS) 1997
This is a voluntary work done with the great wish to share with everyone the awesome power of Medicine Master Vaidurya Light Tathagata.
Happy listening and may all beings be well and happy.