Mayamatam 7.38

7.38

āpaścaivāpavatsaścaivāntaḥ prāguttare smṛtau
savindraścaivasāvindraścāntaḥ prāgdakṣiṇe smṛtau

Āpa and Āpavatsa are remembered within in the northeast; / Savindra and Sāvindra are remembered within in the southeast;