“When thou goest to receive communion go not with thy wrists extended, nor with thy fingers separated, but placing thy left hand as a throne for thy right, which is to receive so great a King, and in the hollow of the palm receive the body of Christ, saying, Amen.” (Catechesis mystagogica V, xxi-xxii, Migne Patrologia Graeca 33)
This is the passage on which the Patristic argument for Communion in the Hand stands or falls. Whereas there is this ONE alleged quote from St Cyril (the one just above from the disputed Catechesis mystagogica), there are many undoubted quotes by other Fathers that affirm Communion on the tongue (both “great” Popes Saint Leo the Great and Saint Gregory the Great) explicitly witness to Communion on the tongue. So why take the dubious quote when there are others to go by?