Such prayer cloths (dastmal-i mohr in Persian) are used by Shi'ite muslims to protect the turbah (also called mohr) clay tablet, which they use when praying. It probably belonged to the (Shi'ite) Hazara population of the country. They often have a white space or a rectangle in the centre for putting the tablet when praying.
This prayer cloth may be compared to another example, housed in the Ethnologisches Museum in Berlin.
See also the TRC online exhibition Dressing the Stans: Textiles, Dress and Jewellery from Central Asia (TRC, Leiden, 2017) and Gillian Vogelsng and Willem Vogelsang, Encyclopedia of Embroidery from Central Asia, the Iranian Plateau and the Indian Subcontinent. 2021. London: Bloomsbury Publishers, pp. 209-210.
TRC online catalogue (retrieved 17 May 2021).
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