Does anyone know what his source is for this?

Liturgy of st.cyril

Reconciliation of St Cyril Abouna Dawood at Saint Mark Coptic Orthodox Church

Liturgy Segments by Abouna Antonious Ibrahim Ayad from St Basil and Gregory Liturgies.

Chanted on 14 April 2017 with the Deacons of St. Mark COC in Jersey City, New Jersey (Westside).

Pavlos - 2:21
Marefmevi - 5:17
Piehmot - 6:02

ⲚⲓⲢⲉⲙ̀ⲛⲭⲏⲙⲓ ̀ⲛ̀Ⲭⲣⲏⲥⲧⲓ̀ⲁⲛⲟⲥ