The respected practical scholar Shaykh Shamsuddin Muhammad binQaroon has also narrated another incident that Moammar bin Shams was oneof the kings’ friends and he was also called by the title of Muzawwar. He wasthe trustee of Alawite properties and one of his assistants was called IbnulKhatib and he had another servant named, Uthman; he was responsible formaintaining his accounts. Ibnul Khatib was a righteous believer whereasUthman was a Sunni. They often argued on religious points.
One day it so happened that they had an argument at the Place of Ibrahim (a.s.) in public. Ibnul Khatib said: The truth will become clear just now. I will write the names of those whom I am devoted to, and they are Hasan and Husain (a.s.). And you may write the name of those to whom you are devoted: like Abu Bakr, Umar and Uthman. Then both our hands will be tied up together and placed in the fire. Whoever’s hand is burnt will be considered false and one whose hand is unhurt will be on truth.
But Uthman refused to take up the challenge and people began to ridicule him. Uthman’s mother was observing this from above; thus when she heard the people make fun of her son she began to abuse them and while she was abusing them, she lost her eyesight and became totally blind. Now she began to scream in terror, but when her friends came to see what the matter was, they found that her eyes seemed to be all right; but nothing was visible from them.
Thus they helped her to come down and then took her to Hilla. When this news spread in her clan, they summoned the physicians of Baghdad and Hilla, but they could not do anything for her.
Then some believer ladies with whom she had acquaintance, told her:Only Imam Qaim (a.s.) has made you blind. Now if you accept the Shia faith and adopt Tawalla and Tabarra we will guarantee your salvation, the
Almighty Allah will cure your malady. Without it your salvation isimpossible.
She agreed on these conditions and on Friday eve, the ladies brought herbelow the dome and left her alone at the place of Imam Zamana (a.s.). Thenthey came outside and spent the night there.
When a quarter of the night had passed that lady came out and her sightwas restored. She was able to see and recognize each of them.
The other ladies were elated at this miracle cure and they asked her toexplain how it happened.
She explained: When you left me below the dome, I felt someonetouching my arm and saying: Go out, the Almighty Allah has cured you.
As soon as he said this, my sight was restored and I saw the whole shrine illuminated with a bright light. Then I noticed a person there and asked him who he was.
He said that he was Muhammad bin Hasan, and after that he disappeared.
The ladies brought her back to her house and her son, Uthman also embraced the Shia faith and both proved sincere converts. This incidentbecame famous in her community and all those who heard about it, becamebelievers in the existence of Imam Zamana (a.s.). This incident occurred in 744 A.H.
Reference : Beharul anwar vol 51.52.53 , Part 1 , The Promised Mahdi