Shiva Purana
प्रथमं कर्म यज्ञादेर्भक्त्या वित्तानुसारतः ॥ बाह्येभ्यर्च्य शिवं पश्चादंतर्यागरतो भवेत् ॥ ४९ ॥
After worshipping Śiva externally at the outset by means of Karmayajña with devotion and in accordance with one’s affluence, the devotee shall afterwards be engaged in inner sacrifice.
english translation
prathamaM karma yajJAderbhaktyA vittAnusArataH ॥ bAhyebhyarcya zivaM pazcAdaMtaryAgarato bhavet ॥ 49 ॥
hk transliteration by Sanscript