WITNESS

Maqālah fī ṣifat al-ashkāl allatī taḥduthu bi-mamarr ṭaraf ẓill al-miqyās fī saṭḥ al-ufq fī kull yawm wa-fī kull balad_San Lorenzo de El Escorial_El Escorial Monastery Library of San Lorenzo_árabe_II 960

References

Derenbourg, Hartwig, and H.P.J. Rénaud. 1941. Les Manuscrits Arabes De l’Escurial, Vol 2, Fasc. 3, Sciences Exactes Et Sciences occultées. 3 vol. Paris: P. Geuthner.

P. 96.