Bhagavatapurana 5.3.16

5.3.16

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aho batāham ṛṣayo bhavadbhir avitatha-gīrbhir varam asulabham abhiyācito yad amuṣyātmajo mayā sadṛśo bhūyād iti mamāham evābhirūpaḥ kaivalyād athāpi brahma-vādo na mṛṣā bhavitum arhati mamaiva hi mukhaṃ yad dvija-deva-kulam //

17. It is a great pity, O sages, that you have asked Me for a great boon impossible to secure, with prayers that cannot prove barren, that his son may be like unto Me; (but) I am like myself, since I am without a second; still the words of Brahmanas ought not to prove false; for the race of Brahmanas who are like the gods among the twice-born is indeed my mouth (myself).