Shiva Purana
अश्वानुष्ट्रान्गर्दभांश्च ताम्रा च कश्यपप्रिया ॥ जनयामास चेत्येवं ताम्रावंशाः प्रकीर्तिताः ॥ ४२ ॥
Tāmrā the beloved of Kaśyapa gave birth to horses, camels and donkeys. Thus the family of Tāmrā has been described to you.
english translation
azvAnuSTrAngardabhAMzca tAmrA ca kazyapapriyA ॥ janayAmAsa cetyevaM tAmrAvaMzAH prakIrtitAH ॥ 42 ॥
hk transliteration by Sanscript