Shiva Purana
ब्रह्माद्याः स्थावरांतश्च पशवः परिकीर्तिताः ॥ पशूनामेव सर्वेषां प्रोक्तमेतन्निदर्शनम् ॥ ६१ ॥
All living beings beginning with Brahmā and ending with the immobile are termed Paśus. Examples cited relate to these Paśus.
english translation
brahmAdyAH sthAvarAMtazca pazavaH parikIrtitAH ॥ pazUnAmeva sarveSAM proktametannidarzanam ॥ 61 ॥
hk transliteration by Sanscript