Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 26

Sanskrit:

यथा नभो वाय्वनलाम्बुभूगुणै-र्गतागतैर्वर्तुगुणैर्न सज्जते ।तथाक्षरं सत्त्वरजस्तमोमलै-रहंमते: संसृतिहेतुभि: परम् ॥ २६ ॥

ITRANS:

yathā nabho vāyv-analāmbu-bhū-guṇairgatāgatair vartu-guṇair na sajjatetathākṣaraṁ sattva-rajas-tamo-malairahaṁ-mateḥ saṁsṛti-hetubhiḥ param

Translation:

The sky may display the various qualities of the air, fire, water and earth that pass through it, as well as such qualities as heat and cold, which continually come and go with the seasons. Yet the sky is never entangled with any of these qualities. Similarly, the Supreme Absolute Truth is never entangled with the contaminations of goodness, passion and ignorance, which cause the material transformations of the false ego.

Purport:

The word ahaṁ-mateḥ here indicates the conditioned living entity, who becomes manifest with the false ego of a particular material body. By contrast, the Personality of Godhead is unaffected by the modes of nature, and thus He is never covered by a material body and never subject to false ego. As described here, the Lord is eternally infallible and pure.