Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 16
Sanskrit:
न स्तुवीत न निन्देत कुर्वत: साध्वसाधु वा ।वदतो गुणदोषाभ्यां वर्जित: समदृङ्मुनि: ॥ १६ ॥
ITRANS:
na stuvīta na nindetakurvataḥ sādhv asādhu vāvadato guṇa-doṣābhyāṁvarjitaḥ sama-dṛṅ muniḥ
Translation:
A saintly sage sees with equal vision and therefore is not affected by that which is materially good or bad. Indeed, although he observes others performing good and bad work and speaking properly and improperly, the sage does not praise or criticize anyone.