The Killing of Ka'b ibn al-Ashraf

❧Speaker Introduction

Dr. Yasir Qadhi introduces this as one of the most controversial incidents in the Seerah, discussed openly in Ṣaḥīḥ al-Bukhārī (which has an entire chapter: "Bāb Qatl Kaʿb ibn al-Ashraf"). He states from the outset: "There is no point in sugarcoating this. It happened. And it was completely justified for that time, that place, and those laws."

❧Who Was Kaʿb ibn al-Ashraf?

He was the son of an Arab father (from Banū Nabhan, a tribe far from Madinah) and a Jewish mother from Banū Naḍīr. His father had committed murder and fled his own people, finding refuge with Banū Naḍīr of Yathrib, where he later married into the tribe. Kaʿb was thus both Arab by lineage and Jewish by religion and tarbiya (upbringing).

He rose to become one of the ashrāf (nobility) of Banū Naḍīr:

- Wealthy: He owned his own fortress on the outskirts of Madinah

- Handsome: Known as one of the most handsome men in Yathrib ("when two races mix, you get the best of both, the sunna of Allah")

- Poet: A skilled and celebrated poet

❧His Campaign Against Islam

❧1. The Qibla Mockery (earliest Madinan period)

When the qibla was changed from Jerusalem to Makkah, Kaʿb publicly mocked: "Mā wallāhum ʿan qiblatihim?", Why have they changed the direction they used to pray? Allah responded in Q 2:142: "The foolish among people will say: what turned them from their qibla that they used to face?", this verse quotes Kaʿb.

❧2. Discouraging Zakāt (early Madinan period)

When zakāt was made obligatory, Kaʿb went to his Anṣārī acquaintances and warned them: "Don't give your wealth away, you'll become poor. And don't be hasty; you don't know what's going to happen to this man." Allah responded in Q 4:37: "Those who are stingy and command others to be stingy, and hide what Allah has given them of His bounty."

❧3. Reaction to Badr

When the two criers returned from Badr announcing the names of those killed, Kaʿb declared sarcastically: "If Muḥammad has truly killed all these nobles, then it is better to be inside the earth than outside of it." Dr. Qadhi notes: "He pronounced his own verdict."

❧4. The Secret Alliance with Abū Sufyān

Kaʿb undertook a secret mission to Makkah and personally met with Abū Sufyān, forming a political-military alliance against the Muslims. During this meeting, Abū Sufyān asked him, swearing by Allah, which religion was more beloved to Allah: Islam or Qurashī paganism? Kaʿb, a monotheist, answered: "Antum ahdā minhum sabīlā", "You are more rightly guided than them." Allah revealed this private conversation in Q 4:51: "Those who were given a share of the Book, they believe in jibt and ṭāghūt, and say to the disbelievers: these are more rightly guided than the believers."

❧5. Erotic Poetry About Muslim Women

Kaʿb composed explicit sensual poetry naming specific Muslim women, designed to provoke and humiliate the Muslim community, a deliberate social and psychological attack. Dr. Qadhi describes this as crossing every line even by the standards of that society.

❧The Authorization

The Prophet ﷺ, aware of the cumulative danger, secret alliance with the military enemy, treaty violations, and a sustained campaign of psychological warfare, asked: "Who will rid us of Ibn al-Ashraf?" Muḥammad ibn Maslamah volunteered, citing his pre-Islamic relationship with Kaʿb as the means to gain access. The Prophet ﷺ authorized the mission and permitted the use of deception (khuddāʿ) as needed.

❧The Operation

The team: Muḥammad ibn Maslamah, Abū Nāʾilah (Kaʿb's foster brother), al-Ḥārith ibn Aws, and others (the sources mention 3-5 total).

The night: 14 Rabīʿ al-Awwal, a full moon, no clouds. The Prophet ﷺ walked with them as far as Baqīʿ al-Gharqad and blessed them: "May Allah help you in your mission."

The approach: They went to Kaʿb's fortress and called up to him. He had recently married a new wife. She heard him stand to go and held onto him, saying: "You are a man at war, and I am worried for you. Where are you going at this hour?", even she, a woman with no direct involvement, understood the reality of the political situation. Kaʿb reassured her: "This is Abū Nāʾilah, my foster brother, I know these men."

He came down alone.

The ruse: The group made casual conversation in the moonlit night. Abū Nāʾilah noticed Kaʿb's fine perfume and asked to smell it. Kaʿb said it was coming from a young wife he had just married. Abū Nāʾilah: "Allow me to smell it from your hair." As Kaʿb lowered his head, Abū Nāʾilah seized him firmly, and the others struck. Because Kaʿb was wearing expensive personal armor, the blows were not clean. In the confusion, al-Ḥārith ibn Aws was struck badly by his own companions' blades and was severely wounded, bleeding profusely.

They returned to Madinah. The Prophet ﷺ met them and placed his saliva on al-Ḥārith's wounds, they healed instantly.

❧Scholarly Debate on Chronology

Ibn Isḥāq / Ibn Hishām / al-Wāqidī: Kaʿb was killed between Badr and Uḥud (the mainstream seerah position).

al-Baghawī, Muqātil ibn Sulaymān, al-Ṣāliḥī (in Subul al-Hudā war-Rashād, ~12 volumes, medieval): Kaʿb was killed shortly before the Battle of Banū Naḍīr, after Uḥud. This group adds one more charge: they hold that Kaʿb was the one who conceived the plot to poison the Prophet ﷺ at a meal, a plan eventually carried out by Banū Naḍīr, and that the Muslims killed him in the middle of the night literally hours before marching against Banū Naḍīr at dawn. Al-Ṣāliḥī attempts to reconcile the two positions by saying the idea of poisoning originated with Kaʿb before Uḥud, even if the execution happened after.

Dr. Qadhi follows Ibn Isḥāq's chronology (pre-Uḥud) but notes the alternative is held by credible scholars.

❧Dr. Qadhi's Commentary

❧No need to be apologetic

"This is an authentic incident in Ṣaḥīḥ al-Bukhārī. You cannot deny it without denying all of seerah. And you don't need to deny it. It is what it is."

❧A political killing, not a religious one

"A kāfir is never killed just for being a kāfir in the seerah. Kaʿb was killed because he was a genuine political threat, a man who had formed a military alliance with the enemy, violated the treaty, and conducted sustained psychological warfare against the Muslim community. The poetry added to it. But the alliance is the core reason."

❧Different time, different laws

"We're judging this with our modern eyes, courts, trials, juries, jails. There were no jails in Madinah. The concept came later in Islamic history. And frankly, even Kaʿb's own wife understood the reality: 'You are a man at war.' She got it. He knew what he was doing. He knew the risks."

❧The double-standard problem

Dr. Qadhi draws an explicit comparison to the United States government's policy (as of the lecture's date) of targeted drone killings, including of its own citizens, without trial, sometimes killing 16-year-olds. "Nobody who approves of that tactic can find any problem with this story. You cannot be a kettle calling the pot. What happened back then was ten or a hundred times less severe."

❧The deterrent effect

Ibn Isḥāq reports that after Kaʿb's killing, the Jewish tribes of Madinah were struck with such fear that many did not leave their fortresses for days. An unmistakable message was sent about the consequences of combining political conspiracy with social warfare against the Muslim community.

❧The trajectory of Prophet's dealings with the Jewish tribes

Dr. Qadhi notes that the Prophet ﷺ's response to the tribes got stricter proportionally as their violations escalated: Banū Qaynuqāʿ (threatened him to his face → expelled), Banū Naḍīr (helped Abu Sufyan, alliance with Kaʿb → eventually expelled), Banū Qurayẓah (betrayed the Muslims at the Battle of the Trench → most severe response). Each step followed their own actions.