Brihat Parashara Hora Shastra
पारावतांशकेऽप्येवं जाता मन्वादयस्तथा । विष्णोः सर्वेऽवताराश्च जायन्ते देवलोकके ॥ ३३॥
With such Lords, placed in Paravatāńś, Manu etc. were born. The Incarnations of Lord Vishnu took place, when such Lords were placed in Devalokāńś.
english translation
pArAvatAMzake'pyevaM jAtA manvAdayastathA । viSNoH sarve'vatArAzca jAyante devalokake ॥ 33॥
hk transliteration by Sanscript