Shiva Purana
ईश्वरम्पूर्वदिक्पत्रे विश्वेशन्दक्षिणे ततः ॥ सौम्ये तु परमेशानं सर्वेशम्प श्चिमे यजेत् ॥ १४ ॥
He shall worship Lord Śiva in the eastern, Viśveśa in the southern, Parameśāna in the northern and Sarveśa in the western petal.
english translation
IzvarampUrvadikpatre vizvezandakSiNe tataH ॥ saumye tu paramezAnaM sarvezampa zcime yajet ॥ 14 ॥
hk transliteration by Sanscript