Arthashastra
एवं सिद्धिस् त्रिविधा एव मन्त्र शक्ति साध्या मन्त्र सिद्धिः, प्रभु शक्ति साध्या प्रभु सिद्धिः, उत्साह शक्ति साध्या उत्साह सिद्धिः ॥
Thus there are three kinds of perfection: mantra shakti sadhya mantra siddhi, prabhu shakti sadhya prabhu siddhi, enthusiasm shakti sadhya enthusiasm siddhi.
english translation
evaM siddhis trividhA eva mantra zakti sAdhyA mantra siddhiH, prabhu zakti sAdhyA prabhu siddhiH, utsAha zakti sAdhyA utsAha siddhiH ॥
hk transliteration by Sanscript