Shiva Purana
मेखलामध्यतः कुर्यात्पश्चिमे दक्षिणे ऽपि वा ॥ शोभनामग्नितः किंचिन्निम्नामुन्मीलिकां शनैः ॥ ८ ॥
The middle of the belt should be placed on the west or south side. The beautiful fire slowly opened a little lower.
english translation
mekhalAmadhyataH kuryAtpazcime dakSiNe 'pi vA ॥ zobhanAmagnitaH kiMcinnimnAmunmIlikAM zanaiH ॥ 8 ॥
hk transliteration by Sanscript