Ib. ii. 24.  In Lev. xii. 8 one pair only of turtles is prescribed, to be offered for the mother, not for the child.  But the reading τὰ ζεύγη in Cyril is confirmed by that in St. Luke, τοῦ καθαρισμοῦ αὐτῶν.  See the authorities in Tischendorf.