The status of wajib is very close to that of "fard". There are three "fard" (obligatory) acts. The concept is found primarily in the writings of Wallace Fard Muhammad and Elijah Muhammad. Elijah Muhammad and Wallace Fard continued to communicate until 1934, when Wallace Fard disappeared. They teach that their founder, Master Fard Muhammad is the Mahdi. To Mr. Fard alone do they offer prayer and sacrifice. For some time, one W. D. Fard assumed leadership of the Moorish movement. Along with Moera, Rapoh acts as a parental figure to the orphaned Fard. Some scholars say it is fard al-ayn and some say it is fard al-kifaya. Fard and his teachings are also referenced in many hip-hop songs.