Shiva Purana
एवं तुष्टो गुरुः शिष्यं पूजकं वत्सरोषितम् ॥ शुश्रूषुमनहंकारं स्नातं शुचिमुपोषितम् ॥ ९ ॥
The spiritual master was thus satisfied with the disciple who worshiped him for a year. He should serve them without egoism, bathe, purify himself and fast.
english translation
evaM tuSTo guruH ziSyaM pUjakaM vatsaroSitam ॥ zuzrUSumanahaMkAraM snAtaM zucimupoSitam ॥ 9 ॥
hk transliteration by Sanscript