I would like to know the usage of Jazak Allah Khair. When is it best used and, any restrictions
What does "Jazak Allah Khair" mean?
When do we use "Jazak Allah Khair".
Jazak Allah Khair for the answer
The full meaning becomes: "Allah will reward you good". This is used as a Du'a by the Muslims and in Arabic it is: جزاك الله خيرا.
In the name of Allah
Malik ibn A’yin quoted that I asked Imam Sadiq (a.s.):
… a Muslim tells another Muslim: جزاک الله خیرا (Jazak Allah Khaira) , what does it mean?
Imam Sadiq (الامام الصادق) (a.s.) said:
Afterwards he said:
(Although it can have worldly blessings as well (besides what I mentioned which is supposed to be given in the paradise…)