It is narrated that:

Imam Jafar al-Sadiq (a.s) said: “On Judgment Day, visitors of Imam Husain (a.s.) will be given an excellence over others.”

I ( narrator) asked, “What is it?”

Imam (a.s) replied, “They will enter Paradise forty years before others; whereas others have to wait in the accounting process.”

[ Kaamil Al-Ziyaraat ]

“One who thinks he is a Shia but does not perform the Ziyarat of Imam Hussein (a.s) before his death, is not our Shia and even if he is of those who enter Paradise, he will be treated as a visitor of the folks of Paradise.”

— Imam Jafar al-Sadiq (ع) Kaamil Al-Ziyaraat ,Ch.78, Traditiona #3