Natyashastra
वन्देत पश्चिमामाशां ततो वरुणदैवताम् । चतुर्थीमुत्तरामाशां वन्देत धनदाश्रयाम् ॥ ९४॥
Then, he should salute the western direction, presided over by Varuṇa, and the fourth direction, the northern one, which is associated with Kubera.
english translation
vandeta pazcimAmAzAM tato varuNadaivatAm । caturthImuttarAmAzAM vandeta dhanadAzrayAm ॥ 94॥
hk transliteration by Sanscript