Shiva Purana
आयुष्कामो गुरोर्वारे देवानां पुष्टिसिद्धये । उपवीतेन वस्त्रेण क्षीराज्येन यजेद्बुधः ३२ ।
A person who seeks longevity shall worship the deities for their gratification, with sacred thread, cloth, milk and ghee on Thursday.
english translation
AyuSkAmo gurorvAre devAnAM puSTisiddhaye । upavItena vastreNa kSIrAjyena yajedbudhaH 32 ।
hk transliteration by Sanscript