Shiva Purana
शिवप्रदक्षिणं कुर्यात्स्वयमष्टोत्तरं शतम् । सहस्रमयुतं लक्षं कोटिमन्येन कारयेत् १३७ ।
The devotee himself shall perform a hundred and eight circumambulations of Śiva. Such circumambulations, a thousand, ten thousand, hundred thousand or a crore in number he shall cause to be performed through others.
english translation
zivapradakSiNaM kuryAtsvayamaSTottaraM zatam । sahasramayutaM lakSaM koTimanyena kArayet 137 ।
hk transliteration by Sanscript