“Put a piece of meat in various parts of town and see in which place it will get rotten more slowly, that would be the proper place for a hospital.” That was the extraordinarily wise and innovative advice of a famous Iranian physician, who at that time lived in Baghdad, to the people who were in search of the most suitable place for building a hospital.This great physician is no one other than Muhammad Ibn Zakariya Razi, also known as Ar-Razi or Rhazes among European scholars, who for the first time in the history of medicine and chemistry, discovered a chemical substance, which served a great deal to these fields, called “alcohol.”

Rhazes 's Life

He was born in 865 A.D in the city of Rey, located in Iran. Though his father tried so hard to make him follow his occupation which was gold smithery, he finally pursued his interest which was alchemy and chemistry at that time. 

Having spent many years of his life as an alchemist, he eventually found out that the only field worth learning and working in, was medicine. Moreover, as Al-Birooni [1] claimed, he lost his eyesight when he was occupied in alchemy, and finding a cure for this disability became his motive in turning his direction to medicine.

To learn medicine thoroughly, he left his hometown for Baghdad where the most advanced hospitals were located. He studied and practiced medicine at the local hospital. After spending many years in Baghdad and gaining experience, he moved back to his beloved hometown, Rey.

There, he became the head of its local hospital. He is known to have been the first person who introduced the method of teaching medicine in its modern form used today in our hospitals. As compassionate and devoted as he was, he never stopped curing sick people, rich or poor, and teaching medicine to the students of any background.

He died on the 15th of October in 925 A.D where he was born and spent most of his life, in the city of Rey.

Rhazes's Discoveries

According to the Encyclopedia Britannica [2], he was the first physician who differentiated between measles and smallpox. Besides he is considered to be the father of pediatrics and a pioneer in ophthalmology- the study and treatment of eye disorders and diseases.

He also believed in treatment with proper diet rather than prescribing medicines to his patients. The translation of his most important works in medicine such as “Al-Hawi” [3] and “Al-Mansuri” [4] has long been taught in medical universities of European countries such as Germany and France. 

He was a devoted Muslim who was profoundly influenced by the teachings of Islam. His idea about the importance of seeking knowledge with one’s full capacity is in close association with the idea of Prophet Muhammad (PBUH) when he said: “those who peruse knowledge, will be perused by heaven” [4] & [5].

The great Iranian Muslim physician, chemist, and philosopher, Muhammad Ibn Zakariya Razi, with his everlasting contributions in medicine and chemistry, did not remain limited to his time or geographical boundaries. He was the great physician of his time and is considered a respected and influential doctor of our age in all parts of the world.     

Reference:

1. "ar-Razi." Encyclopedia Britannica. Encyclopedia Britannica Online.Jun. 2014  
2. ibid. 
3. Mahmud Najm Abadi, The History of Medicine in Iran and World of Islam.
4. Mottaqi Hindi, Kanz al-Aamal.
5. Muhammad, Mizan al Hekmah, vol. IV, Qum: Dar al-Hadith Institution, 1386. p.398.

Ja’far ibn Muhammad (AS) known as the Ja’far as-Sadiq (AS) is the sixth Shiite Imam. Imam Sadiq (AS) was born on 17 Rabi al-Avval 83th (702 CE) in Medina. His father, the previous Imam, was named Muhammad al-Baqir (AS) and his mother was called Umi-Farvah. After his father, Imam Sadiq (AS) became the Imam of the Shias and his leadership lasted for about 34 years. The era of Imam Sadiq (AS) was the time of instability and wars, since the Umayyad dynasty were weakened so much due to the battles they had in the Islamic territory. In addition , Abbasid dynasty were trying to topple the Umayyad government and reign over the whole Islamic world. The weakness of the rulers gave Imam Baqir (AS) and Imam Sadiq (AS) a perfect opportunity to spread the teachings of Shiism and train so many Shia scholars. At last, Imam Sadiq (AS) was martyred by the order of the Mansur (an Abbasid Caliph) on 148 H (765 CE). 

What does “Sadiq” mean?

The word “Sadiq” means an honest person who does not tell lies. 
Once, Imam Sajjad (AS), the grandfather of Imam Sadiq (AS) was asked: “Who is the Imam after you?”
“My son Muhammad (AS) who opens knowledge and after him his son Jafar who is called in the skies as ‘Sadiq’” Imam Sajjad (AS) replied. 
He was asked once more: “Why out of you all, he is called “Sadiq” while you all are honest?”
Imam Sajjad (AS) said: “Because the Prophet (PBUH & HP) said: ‘Name my son Jafar ibn Muhammd as “Sadiq” because there will be another Jafar in the future who falsely claims to be an Imam and he is named “liar” by Allah’” (On the contrary, Jafar ibn Muhammad is honest because he is a true Imam). (1)
The liar Jafar mentioned in the hadith is the son of Imam Hadi (AS), the eleventh Imam. 

The knowledge of Imam Sadiq (AS)

All Shiite Imams were known for their abundant knowledge in their time; but among all, Imam Baqir (AS) and Imam Sadiq (AS) were different. Due to the fact that Umayyad dynasty were weak and unstable in those times, Imam Baqir (AS) and Imam Sadiq (AS) had this chance to unveil the abundant knowledge of the Prophet’s household. 
About 4000 people learned from Imam Sadiq (AS) and narrated hadiths from him . (2)
Amr ibn Abi al-Mighdam, a Sunni scholar, says: 
“Every time I looked at the face of Jafar ibn Muhammad (AS), it would make me sure that he is a descendant of the prophets. Once, I saw him in Jamrah (a place in Mecca where the pilgrims gather) and he was telling people: ‘Ask me! Ask me!’” (3)
Hassan ibn Ali al-Vasha, a Shiite hadith narrator, says:
I saw about 900 sheikhs who all would narrate hadiths from Jafar ibn Muhammad (AS) (4).
Once Abu Hanifah, one of the most knowledgeable and popular Imams of the Sunnis, was asked: “Who do you think is the most knowledgeable person in religious fields?” he said: “I do not know anyone more knowledgeable than Jafar ibn Muhammad (AS)” (5).
Imam Sadiq (AS) is mostly known for his knowledge in Islamic laws and because of this, the Shiite school of law is called “Jafari School”. The hadiths narrated from Imam Baqir (AS) and Imam Sadiq (AS) are more than all the hadiths narrated from the Prophet (PBUH & HP) and the other Imams all combined together.

The moral attributes of Imam Sadiq (AS)

In addition to his wisdom and knowledge, Imam Sadiq (AS) was also known for his significant moral qualities. 
Muhammad ibn Talha says: 
“Imam Sadiq (AS) was the greatest person among the Prophet’s household and he was so knowledgeable and he would pray and recite the Quran so much and he was an ascetic person.” (6)
Malik ibn Anass, one of the Sunni school’s head, says: 
Every time I met him, he was in one of these three moods: either praying, fasting or whispering prayers (7).
Hisham ibn Salim, a famous apprentice of Imam Sadiq (AS) says:
Abu-Abdillah (Imam Sadiq (AS)) would always take a bag full of bread, meat and money in the darkness of the nights and go to the house of the needy ones in Medina and give it to them while they didn’t know him. Then, when he died, the people weren’t given those goods anymore and from that, they found out about his identity. (8)

Resources 

1.  Al-Khara’ij, ar-Ravandi, vol.1, pg.268
2.   Al-Irshad, Sheikh Mufid, vol.2, pg.179
3.    Siar A’lam an-Nubalah, Zahabi, vol.6, pg.257
4.    Rijal al-Kashi, vol.1, pg.138-139
5.   Siar A’lam an-Nubalah, Zahabi, vol.6, pg.257
6.    Kash al-Qummah, Irbeli, vol.2, pg.691
7.  Bihar al-Anvar, Majlesi, vol.47, pg.16
8.   Kafi, Koleini, vol.4, pg.8