مسالك الابصار في ممالك الامصار 2.34

2.34

and its gardens run in straight lines, each line twelve miles, on three of its sides; the western side is bare because a mountain is near it there. In Delhi there are a thousand madrasas, one of them for the Shāfiʿīs and all the rest for the Ḥanafīs, and about seventy hospitals (māristāns), which are called there houses of healing. In it and its territory there are some two thousand Sufi lodges (khānqāhs) and hospices (ribāṭs). It has great convents, long markets and many baths. All its water comes from dug wells with shallow drawing depth, seven cubits at the deepest, with water-wheels on them. The drinking water of its people is rainwater in wide tanks in which the rains collect, each tank an arch-span wide, its height an arrow-shot and more. There is the congregational mosque famous for its minaret, which he said has no equal on the face of the earth in its bulk and height. Shaykh Burhān al-Dīn b. al-Khallāl al-Bazzī the Sufi said that its height is six hundred cubits into the air.