Muhammad Ibn A’jlaan narrates:
I was in the company of Imam Sadiq (a.s.) when a man, from a distant city, arrived and greeted the gathering.
“How were your brothers when you took leave of them?” the Imam (a.s.) asked him.
The man spoke well of them and praised them a great deal. The Imam (a.s.) then questioned, “Do the rich visit the indigent ones when they fall sick?”
He said that they seldom did.
The Imam (a.s.) carried on, “Do the rich seek to know the condition of the impoverished ones?”
“Rarely” answered the man.
“Do the affluent ones help out the poor and the needy?”
The man responded, “You speak of attributes, which are rare amongst our people.”
The Imam (a.s.) remarked, “How then do these people consider themselves to be (our) Shiites (when there exists no bond of brotherhood between the affluent and the impoverished ones).”( Al-Kafi, vol. 2, ‘The Chapter of The Right of a Mu’min upon his brother’, tr. 10 )