Abu Mansur al-Baghdadi and Abu Bakr ibn Furak are named in connection with the opinion that a mashhur report supported by diverse sound routes may yield inferential knowledge. The argument is not about fame in ordinary speech but about genuine mutually supporting reliable transmissions.
Contrast: A statement repeated in a hundred sermons might still depend on one deficient original source; this is not the corroborating circumstance intended here. Several independently verifiable sound paths can instead reinforce one another.
Attribution of the named scholars' positions should be confined to this epistemic discussion. Their names do not by themselves authenticate some unrelated narration or chain.