The name of Muhammad (sas), the Holy Prophet of Islam, has been followed by the symbol (sas), which is an abbreviation for the salutation Sallallahu ‘Alaihi Wasallam (may peace and blessings of Allah be upon him). The names of other prophets and messengers are followed by the symbol (as), an abbreviation for ‘Alaihissalam (on whom be peace). The actual salutations have not generally been set out in full, but they should nevertheless be understood as being repeated in full in each case. The symbol (ra) is used with the name of the companions of the Holy Prophet (sas) and those of the Promised Messiah (as). It stands for Radi Allahu‘anhu/‘anha/‘anhum (may Allah be pleased with him/her/them). The symbol (rta) stands for Rahimahullahu Ta‘ala (may Allah grant him peace) and (aba) stands for Ayyadahullahu Ta‘ala binasrihil ‘Aziz (may Allah the Almighty help him with his powerful support) and is used for the present khalifah of the community.