Shaikh Toosi has mentioned the total number of the followers of Imam al-Baqer [a] as 484 persons and the total number of the students of Imam al-Sadiq [a] as 3197 men and 12 women, in his book Rijal (the biographies of the transmitters of the prophetic traditions). It is obvious that these numbers refer only to those persons whose names are individually mentioned in different books or are famous. Otherwise, there were many others who were not famous or their names were not mentioned and have been forgotten. The learned men have written about the numbers of the students and those who flourished under Imam Ja'far al-Sadiq [a] as two thousand persons, just in the great Mosque of Kufa alone who used to come and listen to his lectures. Therefore, the number of students should be more than this in all other centres and towns.
In fact, each of these liberal men is a burning candle and a shining star. So to have the knowledge and information about the life of each of them is a must for every Muslim because their lives are marked by bravery and chivalry. Undoubtedly, every one can change his mode of life and can rediscover the real path of life by reading the stories of their lives.
So our aim is to manifest the biography of the youngest man of this group of great personalities along with some of his adventurous acts - the perfect man, the pupil of Imam Ja'far al-Sadiq [a] namely Hesham ibn Hakam. We want to present one of the greatest champions of Islam to the young generation. Maybe we can learn a lesson from the story of his continuous efforts in the path to reach the target and his unparalleled devotion to defending the cause of Wilayah (trusteeship).