on the authority of Hammad al-Samdarh 'I said to Abu 'Abdillah, Ja'far b. Muhammad [al-Sadiq] (AS), 'I often go to the lands of the idolaters, and people say that if I die there, I will be resurrected with them.' He said to me, ?O f::lammad! When you are there, do you mention our cause and call people to it?' I said, 'Yes.' He said, 'And when you are in these cities the cities of Islam do you mention our cause and call people to it?' I said, 'No.' He said, 'If you die over there, you will be resurrected as a whole community in yourself, and your light will run before you.'