Abu Bakar Ba'asyir
Indonesian Islamist

Abu Bakar Ba'asyir (born 17 August 1938), also known as Abu Bakar Bashir, Abdus Somad, and Ustad Abu ("Teacher Abu") is a senior Indonesian Islamic and mujahideen figure who was the leader of Jamaah Ansharut Tauhid and Jemaah Islamiyah.
He ran the Al-Mukmin boarding school in Ngruki, Sukoharjo Regency, Central Java, which he co-founded with Abdullah Sungkar in 1972. He was in exile in Malaysia for 17 years during the secular New Order administration of President Suharto resulting from various activities, including urging the implementation of Sharia law.
Intelligence agencies and the United Nations claim he is the spiritual head of Jemaah Islamiyah (also known as JI), best known for the 2002 Bali bombings and which has links with Al-Qaeda. In August 2014, he publicly pledged allegiance to Abu Bakr al-Baghdadi, leader of the Islamic State of Iraq and the Levant (ISIL) and his declaration of a caliphate.
Early life, resistance to Suharto, and exile
Bashir was born in Jombang on 17 August 1938, to a family of Hadhrami Arab and Javanese descent.
During Indonesian President Suharto's New Order, Bashir and Sungkar were arrested for a number of reasons, firstly for actively supporting Sharia, the non-recognition of the Indonesian national ideology Pancasila which in part promotes religious pluralism. Secondly, the refusal of their school to salute the Indonesian flag which signified Bashir's continual refusal to recognise the authority of a secular Indonesian state. Bashir appealed but was subsequently imprisoned without trial from 1978 to 1982. Soon after his release, Bashir was convicted on similar charges; he was also linked to the bomb attack on the Buddhist temple Borobudur in 1985 but fled to Malaysia.
Begin with the source’s own compact description: “Abu Bakar Ba'asyir” is indonesian Islamist. The dossier treats that line as a proposition to test through Bakar, Ba'asyir and Indonesian, not as a finished interpretation.
Why this record matters
The phrase “indonesian Islamist” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q334810. VIAF identifies the subject as 68598661. The Library of Congress control number is no2002047113. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1938, 1972, 2002 and 2014.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Abu Bakar Ba'asyir”, its source revision and the description used here.
- Expand the search: follow Abu Bakar Ba'asyir primary sources, Abu Bakar Ba'asyir archive and Bakar research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Abu Bakar Ba'asyir”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Abu Bakar Ba'asyir” 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.