Shiva Purana
तपसा प्राप्यते स्वर्गस्तपसा प्राप्यते यशः ॥ तपसा प्राप्यते कामस्तपस्सर्वार्थसाधनम् ॥ ४० ॥
Heaven, fame and love are achieved through penance. Penance is the means of achievement for all objects.
english translation
tapasA prApyate svargastapasA prApyate yazaH ॥ tapasA prApyate kAmastapassarvArthasAdhanam ॥ 40 ॥
hk transliteration by Sanscript