Al-Baqara, alternatively transliterated Al-Baqarah (, ; "The Heifer" or "The Cow"), is the second and longest chapter (surah) of the Quran. It consists of 286 verses (āyāt) which begin with the "mysterious letters" ("muqatta'at") A.L.M. In recitation the names of the letters (alif, lām, and mīm) are used, not their sounds. Q2:282 is the longest single verse in the Quran. It is concerned with agricultural futures contracts. The sūrah encompasses a variety of topics and contains several commands for Muslims such as enjoining fasting on the believer during the month of Ramadan; forbidding interest or usury (riba); and several famous verses such as The Throne Verse, Al-Baqara 256, and the final two or three verses. The sūrah addresses a wide variety of topics, including substantial amounts of law, and retells stories of Adam, Ibrahim (Abraham) and Mūsa (Moses). A major theme is guidance: urging the pagans (Al-Mushrikeen) and the Jews of Medina to embrace Islam, and warning them and the hypocrites (Munafiqun) of the fate God had visited in the past on those who failed to heed his call. Al-Baqara is believed by Muslims to have been revealed at Medina over a long period after the Hijrah, with the exception of the riba verses which Muslims believe were revealed during the Farewell Pilgrimage, the last Hajj of Muhammad. In particular, verse 281 in this chapter is believed to be the last verse of the Quran to be revealed, on the 10th day of Dhul al Hijjah 10 A.H., when Muhammad was in the course of performing his last Hajj, 80 or 90 days before he died. Summary 1-20 Unbelievers and hypocrites reproved 21-38 Exhortation to the worship of the true God 39-102 Jews and Christians urged to accept the claim of Muhammad to be a prophet of God 102-112 The opposition of Jews and Christians to Muhammad's prophetic pretensions combated 113 The doctrine of abrogation enunciated 115 A Qibla declared to be redundant 116-141 The Jews denounced and the religion of Abraham declared to be the true Islam 142-153 The Jews finally abandoned and the Arabs accepted by the adoption of Makkah as the Qibla of Islam 154-163 The Bereaved friends of those slain at the Battle of Badr comforted 164-172 Mekkans exhorted to faith in God, and directed to observe the law respecting forbidden meats 173-176 Law concerning lawful and unlawful food (delivered at Madina) 177 The sum of