SHAFAQNA – It is narrated from Imam Baqer (AS) who said: Recommend to our Shias to visit (Ziarat) the shrine of Hussain ibn Ali (AS). Imam Baqer (AS) mentioned 3 benefits for visitors of the shrine of Imam Hussain (AS) in this world. There are other rewards for hereafter that are mentioned in other narrations.
1. Increase in sustenance
2. Increase in life time
3. Protection from bad events 
 Beharul Anwaar, Vol. 78, Page 3 and Wasaelul Shia, Vol. 14, Page 413.