Brahmajalasutta 1.2.3

1.2.3

Tatrapi sudaṃ suppiyo paribbājako anekapariyāyena buddhassa avaṇṇaṃ bhāsati, dhammassa avaṇṇaṃ bhāsati, saṅghassa avaṇṇaṃ bhāsati;

There too, Suppiya criticized the Buddha, the teaching, and the Saṅgha in many ways,