Nicene and Post-Nicene Fathers, Ser. II, Vol. XIV:
The Fourth Ecumenical Council.  The Council of Chalcedon.: Canon XXIII

Canon XXIII.

It has come to the hearing of the holy Synod that certain clergymen and monks, having no authority from their own bishop, and sometimes, indeed, while under sentence of excommunication by him, betake themselves to the imperial Constantinople, and remain there for a long time, raising disturbances and troubling the ecclesiastical state, p. 284 and turning men’s houses upside down.  Therefore the holy Synod has determined that such persons be first notified by the Advocate of the most holy Church of Constantinople to depart from the imperial city; and if they shall shamelessly continue in the same practices, that they shall be expelled by the same Advocate even against their will, and return to their own places.

Notes.

Ancient Epitome of Canon XXIII.

Clerics or monks who spend much time at Constantinople contrary to the will of their bishop, and stir up seditions, shall be cast out of the city. 291

This canon is found in the Corpus Juris Canonici, Gratian’s Decretum, Pars II., Causa XVI, Quæst. I., canon xvij. but with the last part epitomized, as the Roman correctors point out.

Footnotes

“The City,” that is to say Constantinople.