The inscriptions embroidered in gold and silver wire have become more ornate over time.[1] These inscriptions include verses from the Quran and supplications to Allah, as well as the names of the rulers who commissioned the textiles.[13][3] Sitaras made in the Ottoman Empire included the Sultan's tughra (their official calligraphed monogram) in their design.[4] The shahada (the Islamic declaration of faith) is another text used repeatedly.[5] Sitaras for the Kaaba were traditionally decorated with gold buttons and tassels.[4]