Ahl Al-Bayt are the members of the household of the Prophet (peace and blessings be upon him). Allah has bestowed upon the Ahl Al-Bayt of the Prophet numerous virtues. There is no intercession specifically for the family of the Prophet (peace and blessings of Allah be upon him).

The sacred months are Dhu’l-Qa‘dah, Dhu’l-Hijjah, Muharram and Rajab. Some of the scholars have stated that the wisdom behind Rajab being separate from the other sacred months was to enable the Arabs to do ‘umrah in the middle of the year, and that the consecutive months for the purpose of Hajj.

The one who says that the age of Islam started with the Hijrah is referring to the calendar and the people agreed upon creating a system so that people could know the dates of events and define the times of contracts, the dates of visits by delegations, and the like. As for the beginning of Islam itself and people's awareness of it, we do not need to point out that this took place before that time.

One of the greatest reasons for which Allah has created us – which is one of the greatest tests – is the command to affirm His Oneness (Tawhid) and to worship Him Alone with no partner or associate. For more, see the detailed answer.