He said: Abu Bakr Muhammad b. Umar al-Je'abi reported to me from Abul Abbas Ahmad b. Muhammad b. Saeed al-Hamdani, who reported from Ahmad b. Abdul Hamid b. Khalid, who reported from Muhammad b. Amru b. Utbah, from al-Husain al- Ashqar, from Muhammad b. Abi Amarah al-Kufi who said:
I heard JA'FAR B. MUHAMMAD, peace be upon him, say: "Whoever sheds a tear over our spilled blood, or over our usurped rights, or over the dishonour we have suffered, or any of our followers has suffered, such a person shall be blessed by ALLAH (SWT), Most High, in paradise for a long period of time."
(Ref: Al Amali Shakih Mufeed The Twenty Second Assembly Hadees No. 5 )