Council of Chalcedon
Council of Chalcedon, Canon XXVII
Definition of faith and received canons; reception qualifications retained; not the full proceedings
Canon XXVII
The holy Synod has decreed that those who forcibly carry off women under pretence of marriage, and the aiders or abettors of such ravishers, shall be degraded if clergymen, and if laymen be anathematized.
Translation: Henry R. Percival, The Seven Ecumenical Councils, NPNF II.14 (1900), via CCEL.
Source: Council of Chalcedon (CCEL)