If One Adds or Omits any of the Foundational Elements of Prayer
12 - Adding or Omitting “Foundational Elements”Issue No. 1038 - If one adds or omits any of the foundational elements of prayer, intentionally or forgetfully, his prayer becomes void. For example, if a person omits or adds a rukū‘ or two sajdahs together, his prayer will be void. Unintentionally omitting or adding non-foundational acts (e.g., a single sajdah); do not harm the prayer. However, if one adds or omits it purposely, it will make the prayer void.
