A clay tablet or 'Sajda' with Arabic that reads, "Allah, Muhammad, Ali, Fatimah, Hassan and Hussein," is seen in Cairo, Egypt, Sunday, June 23, 2013. A turbah is a small piece of soil or clay, often a... more 
A clay tablet or 'Sajda' with Arabic that reads, "Allah, Muhammad, Ali, Fatimah, Hassan and Hussein," is seen in Cairo, Egypt, Sunday, June 23, 2013. A turbah is a small piece of soil or clay, often a clay tablet, optionally used by some Shia schools, during the daily prayers (Salat) and it symbolizes earth. While use of a turbah is not compulsory, it is highly recommended and many Hadith mention the benefits of prostration (Sajda) upon the soil of the earth or an alternative material. The most favored soil is that of Karbala, the site of the martyrdom of Imam Hussein, the grandson of Islam's prophet Muhammad and one the most believed Shiite saints. (AP Photo/Hassan Ammar) less 
1 / 30
Associated Press | Photo By Hassan Ammar
Sun, Jun 23, 2013 6:04 PM EDT