Shiva Purana
स्वर्गापवर्गसिद्ध्यर्थं भाषितं यत्सुशोभनम् ॥ वाक्यं मुनिवरैः शांतैस्तद्विज्ञेयं सुभाषितम् ॥ २६ ॥
The good statements uttered by the sages quiet and calm for the achievement of heaven and salvation shall be considered ‘sacred utterances.’
english translation
svargApavargasiddhyarthaM bhASitaM yatsuzobhanam ॥ vAkyaM munivaraiH zAMtaistadvijJeyaM subhASitam ॥ 26 ॥
hk transliteration by Sanscript