Aslam o Alaikum
Many Of us have now gotten the Habit of saying Jazak'Allah. But what does it Mean?
Jazak'Allah Means = " "May Allah Grant(or give) you"
It does not have any meaning to it, if it is said just like this.
You Have to Add something to It like for instance Jazak'Allahu Khair which Means "May Allah grant you with Good" This has a Meaning or:
Jazak'Allah Firdoos which Means "May Allah Grant you a High Station in Heaven"
If you only say Jazak'Allah it doesn't have any meaning to it.
Also you can not Say Jazak'Allahu Khair Insha'Allah. It is wrong, because when you say Jazak'Allahu Khair you are saying a Du'a and it is forbidden to say Insha'Allah after the Dua. or When you Say Ameen.
Niether can you say Ameen Inn sha 'Allah .
or Jazak'Allahu Khair Inn sha'Allah.
Both are wrong.
this is a general information for some brothers & sisters who say "JazakAllah" when someone does something good for them or in general...
saying only "JazakAllah" means "may Allah award you" and not "may Allah REward you", so it could be anything...Allay may award some1 punishment also...
"JazakAllah Khair" means "may Allah reward you", which is the right thing to say..
When we say "JazakAllah Khair", we are not just thanking others, but making Dua for them too. What a beautiful Dua, SubhanAllah!