Shiva Purana
धनरूपैः पादुकाद्यैः पादसंग्रणादिभिः । स्नानाभिषेकनैवेद्यैर्भोजनैश्च प्रपूजयेत् ९४ ।
One should worship the Guru with offerings in the form of wealth, such as shoes, and by activities like washing the feet, bathing, performing anointing (abhishekam), offering food (naivedya), and other such practices.
english translation
dhanarUpaiH pAdukAdyaiH pAdasaMgraNAdibhiH । snAnAbhiSekanaivedyairbhojanaizca prapUjayet 94 ।
hk transliteration by Sanscript