Joseph identifies Moroni as one who revealed the Book of Mormon.

Date: Aug 4, 1839
Type: Speech / Court Transcript
Source: Joseph Smith, Jr.
LDS
Hearsay: Scribed Paraphrase
Reference: Joseph Smith, Discourse, between circa 26 June and circa 4 August 1839–B, as Reported by Willard Richards, page 75, The Joseph Smith Papers website, accessed August 11, 2021
Scribe/Publisher: Willard Richards
People: Moroni, Peter, Gabriel, Joseph Smith, Jr., Willard Richards, Michael, Adam
Audience: Latter-day Saints
Transcription: Michael = Adam. Noah. I am Gabriel— Well says I. Who are you? I am Peter, the Angel flying through the midst of heaven Moroni delivered the book of Mormon.
Source Link: https://www.josephsmithpapers.org/paper-summary/discourse-between-circa-26-june-and-circa-4-august-1839-b-as-reported-by-willard-richards/2
Citations in Mormonr Qnas: Moroni's Visit to Joseph Smith