Shiva Purana
सदेशिकानिमान्मत्वा नित्यं यश्शिवमर्चयेत् ॥ स याति शिवसायुज्यं नात्र कार्या विचारणा ॥ २८ ॥
He who worships Śiva everyday after thinking about these and their preceptors attains Sāyujya with Śiva. No doubt need be entertained in this respect.
english translation
sadezikAnimAnmatvA nityaM yazzivamarcayet ॥ sa yAti zivasAyujyaM nAtra kAryA vicAraNA ॥ 28 ॥
hk transliteration by Sanscript