大佛頂如來放光悉怛多般怛羅大神力都攝一切呪王陀羅尼經大威德最勝金輪三昧呪品 1.93

1.93

Furthermore, if there is scrofula sores, or a fever that recurs every day, every two days, or every three days, empower a handful of ashes with the mantra and use it to encircle the sick person; they will immediately be cured.