Book of Jubilees 34:18
For this reason it is ordained for the children of Israel that they should afflict themselves on the tenth of the seventh month -on the day that the news which made him weep for Joseph came to Jacob his father- that they should make atonement for themselves thereon with a young goat on the tenth of the seventh month, once a year, for their sins; for they had grieved the affection of their father regarding Joseph his son.
Background and history of Book of Jubilees, and issues with this book.
R. H. Charles, The Book of Jubilees, in The Apocrypha and Pseudepigrapha of the Old Testament, vol. 2 (Oxford: Clarendon Press, 1913). Public domain in the United States (published 1913). Charles died in 1931, so the book is in the public domain in the United Kingdom. The verse text is the Joshua Williams transcription at pseudepigrapha.com. Jubilees 1:8 and 1:9 are divided at the break in the 1902 Clarendon scan (archive.org bookofjubileesor00char), where verse 9 begins “For they will forget.” That scan also numbers the angel-of-the-presence sentence as 1:29. Editorial brackets in the translation are Charles’s.