Query: Which writing detailed Jesus' appearance before ascension?
Context: According to the First Epistle to the Corinthians (1 Cor. 15:4), Jesus was raised from the dead ("on the third day" counting the day of crucifixion as the first) and according to the canonical Gospels, appeared to his disciples on different occasions before ascending to heaven. The account given in Acts of the Apostles, which says Jesus remained with the apostles for forty days, appears to differ from the account in the Gospel of Luke, which makes no clear distinction between the events of Easter Sunday and the Ascension.