منْ لَمْ يَأْتِ قَبْرَ الْحُسَيْنِ(ع) وَهُوَ يَزْعُمُ أَنَّهُ لَنَا شِيعَةٌ ـ حَتَّى يَمُوتَ، فَلَيْسَ هُوَ لَنَا بِشِيعَةٍ، وَإِنْ كَانَ مِنْ أَهْلِ الْجَنَّةِ فَهُوَ مِنْ ضِيفَانِ أَهْلِ الْجَنَّةِ.
Imam Sadegh (AS): Whoever thinks that he is our Shiite but does not visit the grave of Hussein (AS) until he dies, he is certainly not our Shiite; And if he is from Paradise, he will be one of the guests from Paradise.
source : erfan.ir