Shiva Purana
नाभौ चाष्टाहुतीर्हुत्वा पूर्णाहुत्या नमस्ततः ॥ अष्टपुष्पप्रदानेन कृत्वाभ्यर्चनमंतिमम् ॥ ५४ ॥
After offering eight oblations in the navel, one should offer oblations of full oblations. After offering eight flowers he performed the final worship.
english translation
nAbhau cASTAhutIrhutvA pUrNAhutyA namastataH ॥ aSTapuSpapradAnena kRtvAbhyarcanamaMtimam ॥ 54 ॥
hk transliteration by Sanscript