When the doorman inquired that "Which Brahmā you are, sir?" so he replied . . . he was astonished: "Which Brahmā? Oh, I am so powerful. I have got four heads. I have created this gorgeous universe, and under me there are so many demigods. How is that, 'Which Brahmā?' So all right, Kṛṣṇa has asked. Tell Him that . . ." kaha giyā sanaka-pitā caturmukha āilā, that "Tell Kṛṣṇa that I am four-headed Brahmā. I am the father of Sanaka-Sanātana."
Sanaka-Sanātana . . . he is giving his identification as father of Sanaka-Sanātana, because this Sanaka-Sanātana appeared to be greater than Brahmā. Although these four Kumāras were sons of Brahmā—Sanaka, Sanat-kumāra, Sananda and Sanātana, these four Kumāras—they were so elevated that when their father requested—at that time there was no population—so, that "You get yourself married and increase population. I want population now to fill up this vacant position of this material world, universe," so they refused: "Father, we are not going to marry. We are not going to entangle." So they remained kumāra. So they became very famous, great devotees of Lord from very childhood.
So therefore Brahmā is very intelligent. He is the first creature of this universe. So may Kṛṣṇa forget that who is catur-mukha Brahmā. So he is giving identification that, "Tell Kṛṣṇa that the father of these Sanaka-Sanātana." Because Kṛṣṇa cannot forget His these, I mean to say, pure devotees like Sanaka-Sanātana. So this is the example, that the father is giving identification with the credit of the son. The sons were more creditable than the father, because they were great devotees.