Invalidators of Prayer

During prayer, the Muslim should be God-fearing and should avoid anything that invalidates his prayer. The invalidators of prayer are: 

1-            For the praying person to utter words which do not include mentioning Allah. Uttering two letters or any letter that carries a meaning while remembering that one is praying invalidates one’s prayer.

2-            Performing many moves that last for the duration of one rak^ah. According to some scholars, three consecutive moves invalidate the prayer.

3-            Eating even if it is little, like a sesame seed, except if one forgets.

4-            Drinking while remembering that one is in the prayer, even if it is little, like swallowing a drop of water on one’s lips.