What may invalidate my prayers?
For whom is prayer obligated?
Prayer is obligatory upon every adult and sane Muslim, male and female, but for females in their menstruation which is the monthly blood that an adult woman has, and postpartum which is the bleeding a woman has following a childbirth they are free from prayers till they finish.
What may invalidate my prayer? :-
1-Invalidation of your Wudu
2-Standing is a must in the obligatory prayers but if one cannot stand because of sickness then one can pray while sitting, leaving the standing part intentionally while one can do it invalidates the prayer
3-Praying with clothes that has impurities intentionally.
4-Revealing the intimate parts of the body intentionally:-
-The intimate parts (Awrah) are those parts that must be covered for both males and females in prayer, for males they must cover from navel to the knee, and for females they must cover all of their body except for the face and the hands.
5-Facing another direction than The Qibla in Mecca intentionally, for it is a must to face the direction of Mecca in prayer.
6-Talking intentionally.
7-Laughing out loud.
8-leaving one of the acts of the prayer intentionally or adding to it too.
9-Eating and drinking while prayer.