The Banū Khuza’ah (Arabic بنو خزاعة singular خزاعيّ Khuzā’ī) is the name of an Azdite, Qaḥṭānite tribe (some say Muḑarite ‘Adnānite), which is one of the main ancestral tribes of the Arabian Peninsula. They ruled Mecca for a long period, and most of the tribe now live in and around that city, but are also present in lesser numbers in other countries, mainly Israel, the Palestinian Territories, Iraq and Jordan but also small numbers can be found in Lebanon, Egypt, Libya, Syria, Qatar, Bahrain, Kuwait and UAE.
They participated in the Battle of the Trench. The Banu Nadir began rousing the nomads of Najd. The Nadir enlisted the Banu Ghatafan by paying them half of their harvest. This contingent, the second largest, added a strength of about 2,000 men and 300 horsemen led by Unaina bin Hasan Fazari. The Bani Assad also agreed to join, led by Tuleha Asadi. From the Banu Sulaym, the Nadir secured 700 men, though this force would likely have been much larger had not some of its leaders been sympathetic towards Islam. The Bani Amir, who had a pact with Muhammad, refused to join.
Other tribes included the Banu Murra, with 400 men led by Hars ibn Auf Murri, and the Banu Shuja, with 700 men led by Sufyan ibn Abd Shams. In total, the strength of the Confederate armies, though not agreed upon by scholars, is estimated to have included around 10,000 men and six hundred horsemen. At the end of March 627 the army, which was led by Abu Sufyan, marched on Medina.