Tevijjasutta 1.18

1.18

‘So you say, Vāseṭṭha, that the Brahmans are not able to point out the way to union with that which they have seen, and you further say that neither any one of them, nor of their pupils, nor of their predecessors even to the seventh generation has ever seen Brahmā, And you further say that even the Rishis of old, whose words they hold in such deep respect, did not pretend to know, or to have seen where, or whence, or whither Brahmā is. Yet these Brahmans versed in the Three Vedas say, forsooth, that they can point out the way to union with that which they know not, neither have seen. Now what think you, Vāseṭṭha? Does it not follow that, this being so, the talk of the Brahmans, versed though they be in the Three Vedas, turns out to be foolish talk?’
‘In sooth, Gotama, that being so, it follows that the talk of the Brahmans versed in the Three Vedas is foolish talk!’