Panarion 78.23; 79.7–9 (against the Collyridians) — as quoted by Pitre (pp 87–88); translation: Frank Williams, The Panarion of Epiphanius of Salamis (Brill)
They say that certain Thracian women there in Arabia…bake a loaf in the name of the Ever-virgin [Mary], gather together, and both attempt an excess and undertake a forbidden, blasphemous act in the holy Virgin's name, and offer sacrifice in her name with woman officiants. This is entirely impious, unlawful, and different from the Holy Spirit's message, and is thus pure devil's work, and the doctrine of an unclean spirit…Mary should be honored, but the Father, the Son and the Holy Spirit should be worshiped; no one should worship Mary. There is no commandment to offer the Eucharist even to a man, as though to God, let alone to a woman; not even angels are allowed such glory…Such women should be silenced by Jeremiah, and not frighten the world. They must not say, 'We honor the queen of heaven (Jeremiah 51:18)'…Mary is to be held in honor, but the Lord is to be worshiped!
No freely usable English translation of this passage is online, so the note keeps Pitre's quotation and links to the full text. Translation: Frank Williams, The Panarion of Epiphanius of Salamis (Brill), as quoted by Pitre.
Why Pitre cites it
The Collyridians offered a sacrificial loaf to Mary; Epiphanius calls it 'pure devil's work,' turns Jeremiah's 'queen of heaven' against them, and rules: 'Mary is to be held in honor, but the Lord is to be worshiped!' The distinction between honour and sacrifice that Pitre builds on.