It is not possible for you to forget, while Allah (S.
It is not possible for you to forget, while Allah (S.W.T.) wants you to remember and protect the ahkam of deen. But, I want to leave a written record that will be passed on to the Aimmah (a.s.) who are going to succeed you." Then the Holy Prophet (s.a.w.w.) pointed at Imam Hassan (a.s.) and said, "He is going to be the first one of them." After that he turned towards his younger grandson and said, "The second one of them is Hussayn.
The rest of the Aimmah (a.s) will be from his descendants." The Holy Prophet (s.a.w.w.) repeatedly spoke of Imam Ali (a.s.) as his successor and when he received knowledge that he was soon to leave this world, he left a definite decree regarding the issue. This was at Ghadeer where we have seen the famous Hadith of Thaqalayn was spoken. In it the Prophet (s.a.w.w.) told the people, "I am leaving with you two valuable things. If you hold on to them, you will never lose the right path.
One of them is the book of Allah (S.W.T.), which serves as a chain connecting the Heavens and earth. The other is my pure family. These two will never separate from each other till the Day of Judgment when they will both come to me at the spring of Kauther." From this hadith, we understand that that the Qur'an and the Aimmah (a.s.) together will provide us with the direct path to salvation.
It is not possible to be successful if we take either one independently because they were created to complement each other. The other Aimmah (a.s.) are included in the progeny that the Prophet (s.a.w.w.) referred to in this hadith.They followed in the footsteps of Imam Ali (a.s.) and like him, were the sources of divine knowledge in their times. These Aimmah (a.s.) guided the people, giving them the deeper information that the Muslims of the Prophet (s.a.w.w.)'s time were unable to fully absorb.