<p style='text-align: justify;'>Letter, possibly a draft, referring to the ʿburning of Fusṭāṭ’, חריק מצר (the deliberate destruction of Fusṭāṭ in 1168 CE to prevent it falling intact into Crusader hands). In the disaster a trustee lost collateral worth 10,000 dinars that had been deposited with him.</p>