Banu Qurayza - Arrival of Muhammad

Arrival of Muhammad

The continuing feud between the Aws and the Khazraj was probably the chief cause for several emissaries to invite Muhammad to Yathrib in order to adjudicate in disputed cases. Ibn Ishaq recorded that after his arrival in 622, Muhammad established a compact, the Constitution of Medina, which committed the Jewish and Muslim tribes to mutual cooperation. The nature of this document as recorded by Ibn Ishaq and transmitted by Ibn Hisham is the subject of dispute among modern historians, many of whom maintain that this "treaty" is possibly a collage of agreements, of different dates, and that it is not clear when they were made. Watt holds that the Qurayza and Nadir were probably mentioned in an earlier version of the Constitution requiring the parties not to support an enemy against each other.

Aside from the general agreements, the chronicles by Ibn Ishaq and al-Waqidi contain a report that after his arrival, Muhammad signed a special treaty with the Qurayza chief Ka'b ibn Asad. Ibn Ishaq gives no sources, while al-Waqidi refers to Ka’b ibn Malik of Salima, a clan hostile to the Jews, and Mummad ibn Ka’b, the son of a Qurayza boy who was sold into slavery in the aftermath of the siege and eventually became a Muslim. Among modern historians, R. B. Serjeant supports the historicity of this document and suggests that the Jews knew "of the penalty for breaking faith with Muhammad". On the other hand, Norman Stillman argues that the Muslim historians had invented this agreement in order to justify the subsequent treatment of the Qurayza. Watt also rejects the existence of such a special agreement but notes that the Jews were bound by the aforementioned general agreement and by their alliance to the two Arab tribes not to support an enemy against Muhammad. Serjeant agrees with this and opines that the Qurayza were aware of the two parts of a pact made between Muhammad and the Jewish tribes in the confederation according to which "Jews having their religion and the Muslims having their religion excepting anyone who acts wrongfully and commits crime/acts treacherously/breaks an agreement, for he but slays himself and the people of his house."

During the first few months after Muhammad's arrival in Medina, the Banu Qurayza were involved in a dispute with the Banu Nadir: The more powerful Nadir rigorously applied Lex talionis against the Qurayza while not allowing it being enforced against themselves. Further, the blood money paid for killing a man of the Qurayza was only half of the blood-money required for killing a man of the Nadir, placing the Qurayza in a socially inferior position. The Qurayza called on Muhammad as arbitrator, who delivered the surah 5:42-45 and judged that the Nadir and Qurayza should be treated alike in the application of lex talionis and raised the assessment of the Qurayza to the full amount of blood money.

Tensions quickly mounted between the growing numbers of Muslims and Jewish tribes, while Muhammad found himself at war with his native Meccan tribe of the Quraysh. In 624, after his victory over the Meccans in the Battle of Badr, Banu Qaynuqa assaulted a Muslim woman which led to their expulsion from Medina for breaking the peace treaty of Constitution of Medina. The Qurayza remained passive during the whole Qaynuqa affair, apparently because the Qaynuqa were historically allied with the Khazraj, while the Qurayza were the allies of the Aws.

Soon afterwards, Muhammad came into conflict with the Banu Nadir. He had one of the Banu Nadir's chiefs, the poet Ka'b ibn al-Ashraf, assassinated and after the Battle of Uhud accused the tribe of treachery and plotting against his life and expelled them from the city. The Qurayza remained passive during this conflict, according to R. B. Serjeant because of the blood money issue related above.