Mahabharata 14.48.22

सद्भावनिरताश्चान्ये केचित्संशयिते स्थिताःदुःखादन्ये सुखादन्ये ध्यानमित्यपरे स्थिताः

sadbhāvaniratāścānye kecitsaṃśayite sthitāḥduḥkhādanye sukhādanye dhyānamityapare sthitāḥ

Our plain-language meaning of this verse is waiting for scholar review.