Shiva Purana
चतस्रः प्रणिधातव्याः पूर्वादिक्रमयोगतः ॥ हृत्कंठांसेषु नाभौ च कुक्षौ पृष्ठे च वक्षसि ॥ ७१॥
The four should be meditated upon in the order of precedence On the heart, neck, shoulders, navel, abdomen, back and chest.
english translation
catasraH praNidhAtavyAH pUrvAdikramayogataH ॥ hRtkaMThAMseSu nAbhau ca kukSau pRSThe ca vakSasi ॥ 71॥
hk transliteration by Sanscript