Shiva Purana
क्षुरं गृहीत्वा तारेण दक्षभागे निकृन्तयेत् ॥ केशांश्च कांश्चि दग्रेषु वप्त्वा सर्वं च वापयेत् ॥ ७ ॥
He shall take the razor and cut off a patch of hair on the right side. Then a few hair on the front, then the entire hair shall be shaved off.
english translation
kSuraM gRhItvA tAreNa dakSabhAge nikRntayet ॥ kezAMzca kAMzci dagreSu vaptvA sarvaM ca vApayet ॥ 7 ॥
hk transliteration by Sanscript