Shiva Purana
तच्छापाद्भैरवस्सोथ क्षिताववतरन्मुने ॥ मनुष्ययोन्यां वैतालसंज्ञकश्शंकरेच्छया ॥ ११ ॥
Due to her curse, and as a result of Śiva’s will, O sage, Bhairava descended to the earth in human birth under the name of Vaitāla.
english translation
tacchApAdbhairavassotha kSitAvavataranmune ॥ manuSyayonyAM vaitAlasaMjJakazzaMkarecchayA ॥ 11 ॥
hk transliteration by Sanscript