The title relates to food, and a central theme of this Medinan sura is the regulation of lawful and unlawful food, obedience to which is part of the pledge between God and the believers (verses 1–5, 87–108). Part of the sura concerns hunting for food during the pilgrimage and respect for the rites of pilgrimage. God had also taken pledges from the Jews and Christians and the section between verses 13 and 86 deals with what these two communities did to their pledges, and with their relationships with the Muslims. The passage from verse 109 to the end deals with the afterlife and the verdict of the messengers on the behaviour of their respective communities. Jesus, in particular, is given prominence here: mention is made of the feast for which his disciples asked him to pray to God, which gives the sura its title, and of his renunciation of any claim to divinity.
Source: The Qur’an (Oxford World’s Classics) by M. A. S. Abdel Haleem (Amazon Kindle Edition)