Yusuf al-Ayiri
al-Qaeda member
Yusuf al-Ayeri (Arabic: يوسف العييري) or Yusuf bin Salih bin Fahd al-'Uyayri (1974 – 2003; known by a number of aliases, including al-Battar—the Arabic name of one of the swords of Muhammad—conventionally rendered "Swift Sword" in English) was a Saudi Arabian member of Al-Qaeda, and the first-ever leader of al-Qaeda in Saudi Arabia.
Biography
Born on 24 April 1974 in Dammam, Saudi Arabia to an upper-middle-class family, Ayeri was known for taking part in illegal street racing, before dropping out of secondary school at age 18 and travelling to Afghanistan, where he received paramilitary training in the Al Farouq training camp, eventually becoming a trainer at the camp. Ayeri briefly served as a bodyguard of Al Qaeda leader Osama bin Laden, with whom he traveled to Sudan.
The leader of the Somali militant Islamist group Al-Shabaab, Ahmed Godane, said that Saif al-Adel and Yusef al-Ayeri played an important role in the 1993 Battle of Mogadishu by providing training and participating in the battle directly.
After the 1996 Khobar Towers bombing in Saudi Arabia, Ayeri was arrested by Saudi authorities and tortured. After two years he was released and was tasked by Bin Laden with organizing Al Qaeda's branch within Saudi Arabia.
According to Ron Suskind's One-percent Doctrine, he was the mastermind of a planned cyanide gas attack on both the New York City Subway and the PATH (both of which were canceled shortly before they were to happen).
Before his death, he also wrote a number of strategic documents on Al-Qaeda. According to Ron Suskind's One-percent Doctrine,
First, it was discovered that this al-Ayeri was behind a Web site, al-Nida, that U.S. investigators had long felt carried some of the most specialized analysis and coded directives about al Qaeda's motives and plans. He was also the anonymous author of two extraordinary pieces of writing -- short books, really, that had recently moved through cyberspace, about al Qaeda's underlying strategies.
The public source identifies “Yusuf al-Ayiri” as al-Qaeda member. This brief keeps that definition visible, then builds a research path around Yusuf, al-Ayiri and al-Qaeda.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q22690852. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1974, 2003, 1993 and 1996.
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This entry incorporates text from “Yusuf al-Ayiri” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.