How can one debate those who accuse Abu Hurairah of kufr (disbelief), magic, and Jewishness, and what are the appropriate references for that?

The discussion with anyone who accuses Abu Hurairah of disbelief and magic should include: demanding proof from them, clarifying the obligation of verifying information, refuting the accusations and exposing their falsehood, explaining the virtues of Abu Hurairah, and defending the Prophetic Sunnah and its narrators.