Catena Fidei

1 Corinthians 15:7 (WEB)
Then he appeared to James, then to all the apostles,

Catechism · 2

§642Paragraph 2 · On the Third Day He Rose from the DeadRead at vatican.va
“Peter and the Twelve are the primary "witnesses to his Resurrection", but they are not the only ones - Paul speaks clearly of more than five hundred persons to whom Jesus appeared on a single occasion and also of James and of all the apostles.” — Catechism footnote: I Cor 15:4-8; cf. Acts 1:22.

§857Paragraph 3 · The Church is One, Holy, Catholic, and ApostolicRead at vatican.va
“The Church is apostolic because she is founded on the apostles, in three ways: - she was and remains built on "the foundation of the Apostles," The witnesses chosen and sent on mission by Christ himself;” — Catechism footnote: Cf. Mt 28:16-20; Acts 1:8; 1 Cor 9:1; 15:7-8; Gal 1:1; etc.

Origen, Against Celsus II.62Book II
“And last of all He was seen of me also, as of one born out of due time.”” — editor's note: 1 Cor. xv. 3–8.
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Cyril of Jerusalem, Catechetical Lectures Lecture 15
“…then He was seen of above five hundred brethren at once; (if they disbelieve the twelve, let them admit the five hundred;) after that He was seen of James, His own brother, and first Bishop of this diocese.” — editor's note: Ib. 7. This appearance of Christ to James is not mentioned in the Gospels. Jerome (Catalog. Script. Eccles. p. 170 D) mentions a tradition that James had taken…
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Eusebius of Caesarea, Church History I.11Book I
“…from the dead he appeared first to Cephas, then to the twelve, and after them to above five hundred brethren at once, of whom some had fallen asleep; but the majority were still living at the time he wrote.” — editor's note: See 1 Cor. xv. 5–7.
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Augustine of Hippo, Harmony of the Gospels III.26Book III
“And last of all He was seen of me also, as of one born out of due time.”” — editor's note: 1 Cor. xv. 3–8.
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