As described by Śrīla Jayadeva Gosvāmī in his Daśāvatāra-stotra, Lord Buddha apparently decried the Vedic knowledge:
nindasi yajña-vidher ahaha śruti-jātaṁ
sadaya-hṛdaya-darśita-paśu-ghātam
keśava dhṛta-buddha-śarīra jaya jagad-īśa hare
The mission of Lord Buddha was to save people from the abominable activity of animal killing and to save the poor animals from being unnecessarily killed. When pāṣaṇḍīs were cheating by killing animals on the plea of sacrificing them in Vedic yajñas, the Lord said, "If the Vedic injunctions allow animal killing, I do not accept the Vedic principles." Thus he actually saved people who acted according to Vedic principles. One should therefore surrender to Lord Buddha so that he can help one avoid misusing the injunctions of the Vedas.
(Srimad Bhagavatam-----6:8:19-----purport).

As the Lord took His second step, He covered the heavenly planets. And not even a spot remained for the third step, for the Lord's foot extended higher and higher, beyond Maharloka, Janaloka, Tapoloka and even Satyaloka.
When the Lord's footstep exceeded the height of all the lokas, including Maharloka, Janaloka, Tapoloka and Satyaloka, His nails certainly pierced the covering of the universe. The universe is covered by the five material elements (bhūmir āpo 'nalo vāyuḥ kham (B.G.7:4). As stated in the śāstra, these elements are in layers, each ten times thicker than the previous one. Nonetheless, the nails of the Lord pierced through all these layers and made a hole penetrating into the spiritual world. From this hole, the water of the Ganges infiltrated into this material world, and therefore it is said, pada-nakha-nīra janita jana-pāvana (Daśāvatāra-stotra 5). Because the Lord kicked a hole in the covering of the universe, the water of the Ganges came into this material world to deliver all the fallen souls.
(Srimad Bhagavatam-----8:20:34-----translation and purport).