Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/13/75

शिवपूजा तु तैः पूर्वमुत्तार्य्या नान्यथा पुनः ।। अन्येषां नाधिकारोऽस्ति शिवस्य वचनादिह ।। ७५ ।।

sanskrit

At first Śiva’s worship shall be performed by the Baṭukas alone. Not otherwise. None else is entitled to the worship as Śiva has said.

english translation

zivapUjA tu taiH pUrvamuttAryyA nAnyathA punaH || anyeSAM nAdhikAro'sti zivasya vacanAdiha || 75 ||

hk transliteration by Sanscript