Agnipurana 254.47

254.47

yasya vegair vinā jīrṇaṃ śuddhiṃ tasya vinirdiśet /
devānugrān samabhyarcya tatsnānodakamāharet //

If it is digested by him without violent fits, one should declare his purity. / Having worshipped the fierce deities, one should take the water of their bathing;