Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 36
Sanskrit:
श्रीभगवानुवाचजन्मकर्माभिधानानि सन्ति मेऽङ्ग सहस्रश: ।न शक्यन्तेऽनुसङ्ख्यातुमनन्तत्वान्मयापि हि ॥ ३६ ॥
ITRANS:
śrī-bhagavān uvācajanma-karmābhidhānānisanti me ’ṅga sahasraśaḥna śakyante ’nusaṅkhyātumanantatvān mayāpi hi
Translation:
The Supreme Lord said: My dear friend, I have taken thousands of births, lived thousands of lives and accepted thousands of names. In fact My births, activities and names are limitless, and thus even I cannot count them.