Agnipurana 209.42

209.42

tathā caikaśaphaṃ sarvaṃ yāmyaś ca mahiṣas tathā /
uṣṭraś ca nairṛto dhenū raudrī chāgo 'nalas tathā //

and likewise all one-hoofed animals belong to Yama, and so does a buffalo; / a camel belongs to Nirṛti; a cow to Rudra; and a goat to Agni;