The rest of the companions who were not closely related to...

The rest of the companions who were not closely related to Muhammad nor reached the degree of knowledge of Ibn Abbas are obviously excluded. How Could It Be Possible for the Members of the House of Muhammad to Obtain a Knowledge of Certainty in All the Islamic Teachings?" Possession of certainty in religious teachings was very possible at the time of the Messenger.

It is very logical to assume that the Prophet taught a disciple of his such as ‘Ali all the contents of the Holy Qur'an and informed him of all the Islamic laws which may number a few thousands. It is fair to assume that such a close disciple taught some of his disciples all that he received from the Prophet. These assumptions are supported by…