Shiva Purana

siva.sh/siva-purana/saturda-samhita/11/45

उपकारो हि साधूनां सुखाय किल संमतः ।। उपकारो ह्यसाधूनामपकाराय केवलम् ।। ४५ ।।

sanskrit

Help rendered to good men is accepted as conducive to happiness. Help rendered to bad men is conclusive to offence.

english translation

upakAro hi sAdhUnAM sukhAya kila saMmataH || upakAro hyasAdhUnAmapakArAya kevalam || 45 ||

hk transliteration by Sanscript