七佛八菩薩所說大陀羅尼神呪經 4.86

4.86

呪二十一遍，五色縷青黃赤白黑，結作三七結，痛處繫。

Recite the spell twenty-one times over five-coloured thread—blue, yellow, red, white, and black—tie it into three times seven knots, and tie it to the painful place.