Shiva Purana
साधकः पंचलक्षान्ते शिवप्रीत्यर्थमेव हि । महाभिषेक नैवेद्यं कृत्वा भक्तांश्च पूजयेत् 1-17-१३० ।
At the end of every five hundred thousand Japas, the aspirant shall perform Mahābhiṣeka and Naivedya. He shall worship devotees of Śiva for gratifying Śiva.
english translation
sAdhakaH paMcalakSAnte zivaprItyarthameva hi । mahAbhiSeka naivedyaM kRtvA bhaktAMzca pUjayet 1-17-130 ।
hk transliteration by Sanscript