The treatise of Qusṭā Ibn Lūqā on the regimen during the pilgrimage to Mecca : a critical edition of the Arabic text with commentary, glossary, indices and translation into English / Gerrit BosQusṭā ibn Lūqā's medical regime for the pilgrims to Mecca : the Risāla fī tadbīr safar al-ḥajj / ed. with transl. and commentary by Gerrit Bos