[Joseph Smith, Jr.] “then enquired when he could have them, and was answered thus: come one year from this day, and bring with you your oldest brother [Alvin], and you shall have them. This spirit, he said was the spirit of the prophet who wrote this book, and who was sent to Joseph Smith, to make known these things to him. Before the expiration of the year, his oldest brother died …”
Willard Chase’s 1833 Testimony, in E.D. Howe’s Mormonism Unvailed (Painesville, OH: Self-published, 1834), 242-243.