A prayer rug or prayer mat (سجادة sajjāda pl. سجاجيد sajājīd, or musallah; seccade or namazlık; جانماز, جانماز jānamāz) is a piece of fabric used by Muslims, placed between the ground and the worshipper for cleanliness during the various positions of Islamic prayer, which involved prostration and sitting on the ground.... Found on http://en.wikipedia.org/wiki/Prayer_rug
Term applied to any Oriental rug with a mihrab - the stylised representation of the Mecca-facing prayer niche inside a mosque -as the prominent motif. The rugs were often used as wall-hangings. See saf. Found on http://www.encyclo.co.uk/visitor-contributions.php