When Najjashi assumed the rulership of Ahwaz there was a person in his service who requested Imam (a.s.) that, “I owe a certain amount to the ruler and he is a Shia, if you feel proper, please write to him regarding this matter.”
Imam (a.s.) wrote:
“In the Name of Allah, The Beneficent, The Merciful. Please your brother so that Allah may please you.”14
The narrator says that when the person went to Najjashi, he was busy in some official matter. When he was free he handed Najjashi the letter saying that it was from Imam (a.s.). He kissed the letter and touched it to his eyes and asked, “What is the matter?” He told him that he owed some taxes. “How much?” Najjashi asked, “Ten thousand Dirhams,” he replied. Najjashi called his accountant and told him to note down his debt as paid and close his account in the register. Then he went further and said that for the following year too this amount of taxes should be marked as paid. Then he turned towards him and asked, “Have I made you happy?”
“Yes!” replied the man.
Then he called for a horse, and a slave brought it. He ordered for a dress and gave to the man. At each step he kept asking, “Have I made you happy? Have I made you happy? The man kept replying “Yes! Yes! May I be sacrificed for you, Yes!” At last he told him to take even the carpet on which he was sitting. Because, he said, “It was on this carpet that you handed me this letter of my Master (a.s.), and if you have any other need, tell me.” The man thanked him profusely, returned to Imam (a.s.) and related the details. The Imam (a.s.) was extremely pleased at the behaviour of Najjashi. The man asked, “O my Master are you pleased with Najjashi’s response?”
Imam (a.s.) replied,
“By Allah! Najjashi has also pleased Allah, His Prophet (S) and his Progeny.”