Shiva Purana
स्वस्तिकासनमारूढं विधाय प्राङ्मुखः स्वयम् ॥ वरासनस्थितो मंत्रैर्महामंगलनिःस्वनैः ॥ ५५ ॥
He himself placed himself on a swastika seat and faced east. Seated on a splendid throne he chanted mantras resounding with great auspiciousness.
english translation
svastikAsanamArUDhaM vidhAya prAGmukhaH svayam ॥ varAsanasthito maMtrairmahAmaMgalaniHsvanaiH ॥ 55 ॥
hk transliteration by Sanscript