Shiva Purana
अत्रेर्भार्यानुसूया च पञ्चात्रेयानसूयत ॥ कन्यकां च श्रुतिं नाम माता शंखपदस्य च ॥ ३० ॥
Atri’s wife Anasūya bore five sons the Ātreyas and a daughter Śruti, the mother of Śaṅkhapada.
english translation
atrerbhAryAnusUyA ca paJcAtreyAnasUyata ॥ kanyakAM ca zrutiM nAma mAtA zaMkhapadasya ca ॥ 30 ॥
hk transliteration by Sanscript