1 Corinthians 15:11

Irenaeus Against Heresies Book III

after the resurrection, he says in continuation, "But whether it were I or they, so we preach, and so ye believed,"[223]

Tertullian Against Marcion Book IV

if Marcion be an apostle, still as Paul says, "Whether it be I or they, so we preach; "[103]

Tertullian On Modesty

I am content with the fact that, between apostles, there is a common agreement in rules of faith and of discipline. For, "Whether (it be) I," says (Paul), "or they, thus we preach."[234]

Archelaus Acts of the Disputation with the Heresiarch Manes "Therefore, whether it were I or they, so we preach, and so ye believed."[345]