Full catalogue record in Fihrist: Union Catalogue of Manuscripts from the Islamicate WorldOn the Regimen of Health (Fī tadbīr al-ṣiḥḥah) was written in 1198 CE for Nūr al-Dīn ’Alī, the eldest son of Saladin. It consists of four sections. The first contains a general ‘regimen of health’ to be followed by everyone, the second a general regimen for circumstances in which no doctor, or only an inadequate one, is available. The third section contains a regimen designed specifically for Nūr al-Dīn ’Alī, and the fourth consists of useful general advice.