The birth of imam al reza (as)

When Imam Reza, peace be on him, was born, the earth shined; waves of delight and happiness spread through the Household of the Prophet, may Allah bless him and his Household. As for Imam al-Kazim, he received with more delight the news of the birth of his blessed baby, so he hurried to his wife and congratulated her on her baby, saying: “I congratulate you, Najma. It is a mark of nobility for you from your Lord!"
Imam al-Kazim took his blessed baby, folded it with a white piece of cloth, and performed the religious rites for it. He said the adhan in its right ear, said the iqama in its left ear, called for sweet water and rubbed its lower jaw with it, and then he returned it to its mother and said to her: “Take it, for it is the rest (baqiyat) of Allah on His earth."
The first picture which the Prophet’s grandson (Imam Reza, peace be on him) saw in the world of existence was that of his father, the Imam of the Allah-fearing and leader of the monotheists; and the first voice which he heard was:
“Allah is Great!"
“There is no god but Allah!"
These brilliant words are the secret of existence and song of the Allah-fearing.
Imam al-Kazim, peace be on him, named his blessed baby with the name of his grandfather Imam ‘Ali, the Commander of the faithful, peace be on him, that he might get blessing seek good omen in this name, which stood for the greatest personality created in the world of Islam and had all good qualities of the world.