Undermines· moderateGEO-E027
Al-Suyūṭī's two al-Maʾmūn entries (tr. Nemoy 1939) describe the breach and its finds but mention no salt
- what the source states
- The compilation gives the caliph's opening of the pyramid twice. In the first entry (Isis p. 24, attributed by Nemoy's n.6 to al-Masʿūdī via al-Maqrīzī) the workers kindled fire, applied vinegar, tempered iron tools and used catapults; the Pyramid was opened "and they found its wall to be twenty cubits thick"; behind the breach they found a chrysolite jar of a thousand dinars, a square well with four doors to chambers of shrouded corpses, and at the top a chamber with a stone sarcophagus holding a malachite idol. In the second entry (Isis pp. 28–29, [p. 13–14]) al-Maʾmūn struck a narrow shaft of black quartz, a deep well, and a square place with a covered granite basin: "they found nothing but worn out pieces of rope". A third mention (Ibn al-Mutawwaj, Isis p. 30) reports a sarcophagus with an inscribed marble tablet. No passage in any of these mentions salt, halite, or any coating on the chamber walls.
- what we infer
- Editor's inference: the salt-layer report attributed to al-Maʾmūn's party (GEO-C003, carried in the ledger only by SRC-GEOPOLYMER-INST) is absent from the compilation that gathers the principal medieval Arabic accounts of the breach. This is negative evidence within one compilation, not proof that no Arabic author says it: al-Maqrīzī's full Khiṭaṭ chapter (Graefe ed.), ʿAbd al-Laṭīf al-Baghdādī and the Arabic extracts in Vyse 1840 vol. 2 remain unread (GEO-R001). But the burden now sits with whoever asserts the salt report to name its author.
- limitations
- A 15th-century compilation of earlier authors, translated in 1939; not a contemporary witness.
- Other medieval Arabic sources on the breach have not been checked in this pass.
- OCR of the scan is imperfect; readings of names are Nemoy's transliterations as rendered by OCR.
- Second reader (claude-sonnet-5, 2026-09-08) disputes the stated direction: The quoted spans (the twenty-cubit wall, the worn rope in the granite basin, the marble tablet) appear exactly as described at the cited pages, and the summary of the two al-Ma'mun entries plus the Ibn al-Mutawwaj mention is accurate and appropriately scoped, with no mention of salt anywhere in these passages. However, while 'undermines' is apt for GEO-C003 (a source that should mention salt if the claim were well-attested but doesn't), it is the wrong direction for the salt-layer claim, since this very source is the primary basis of and confirms (supports) that claim's description of the entries' contents; the record should not list 'undermines' against the claim it is essentially restating and supporting.