Ahl-al-Bayt (`a): Its Meaning and Origin
The term "ahl" signifies the members of a household of a man, including his fellow tribesmen, kin, relatives, wife (or wives), children, and all those who share a family background, religion, housing, city, and country with him. "Ahl" and "al" are both the same term with the exception that "al" is exclusively used for human beings and should come before the family name, but such a condition is not existent in the case of "ahl". "Bayt" refers to habitation and dwelling, including tents and buildings both. The "ahl-al-bayt" of any person refers to his family members and all those who live in his house (c.f. "Mufradat al-Qur'an" by Raghib Isfahani; "Qamus" by Firoozabadi; "Majm`a al-Bahrayn". The term "ahl-al-bayt" (people of the house) has been repeated twice in the Holy Qur'an: 1. "... the mercy of Allah and his blessing are on you, O people of the house, ... (11:73...