Alexander's Deposition of Arius and his companions, and Encyclical Letter on the subject.
Alexander, being assembled with his beloved brethren, the Presbyters and Deacons of Alexandria, and the Mareotis, greets them in the Lord.
Although you have already subscribed to the letter I addressed to Arius and his fellows, exhorting them to renounce his impiety, and to submit themselves to the sound Catholic Faith, and have shown your right-mindedness and agreement in the doctrines of the Catholic Church: yet forasmuch as I have written also to our fellow-ministers in every place concerning Arius and his fellows, and especially since some of you, as the Presbyters Chares and Pistus, and the Deacons Serapion, Parammon, Zosimus, and Irenæus, have joined Arius and his fellows, and been content to suffer deposition with them, I thought it needful to assemble together you, the Clergy of the city, and to send for you the Clergy of the Mareotis, in order that you may learn what I am now writing, and may testify your agreement thereto, and give your concurrence in the deposition of Arius, Pistus, and their fellows. For it is desirable that you should be made acquainted with what I write, and that each of you should heartily embrace it, as though he had written it himself.
A Copy.
To his dearly beloved and most honoured fellow-ministers of the Catholic Church in every place, Alexander sends health in the Lord.
Source: Deposition of Arius (New Advent)