Shiva Purana
दक्षिणे चोत्तरे चैव नंदीशं सुयशं तथा ॥ आराध्य मनसा सम्यगासनं कल्पयेद्बुधः ॥ ४ ॥
In the southern and northern regions are Nandisha and Suyasha The wise man should worship the Lord with his mind and arrange a proper seat.
english translation
dakSiNe cottare caiva naMdIzaM suyazaM tathA ॥ ArAdhya manasA samyagAsanaM kalpayedbudhaH ॥ 4 ॥
hk transliteration by Sanscript