21:54 - 2017/02/04
From the time one says the Takbiratul Ihram and starts his Salat ...
From the time one says the Takbiratul Ihram and starts his Salat, until the end of the Salat, many actions become haram for him, and if any of these are performed during the Salat, the Salat will become void, for example:
Speaking
Laughing
Crying
Turning away from the Qiblah
Eating and Drinking
Breaking the form of the Salat
Adding or taking away anything from the arkan of Salat