Agni Purana 305.9

305.9

nābhistenāgninā viddhā naśyante vyādhayo grahāḥ /
pītañcakraṃ gadā raktāḥ svarāḥ śyāmamavāntaraṃ //

Pierced by that fire in the navel, diseases and seizing spirits are destroyed. / The discus is yellow, the maces are red, the vowels [are in] the dark intermediate space;