"Jean-Baptiste Tavernier, who visited Ahmadabad numerous times, wrote a short account of the incident, There was a Pagoda in this place, which the Muhammadans took possession of in order to turn it into a mosque. Before entering it you traverse three great courts paved with marble, and surrounded by galleries, and you are not allowed to place foot in the third without removing your shoes. The exterior of the mosque is ornamented with mosaic, the greater part of which consists of agates of different colours, Obtained from the mountains of Cambay, only two days’ journey from thence ."
January 1, 1970
https://en.wikiquote.org/wiki/Shantidas_Jhaveri