Does performing ruku and sajdah (prostration) before the command of the imam invalidate the prayer?

Does performing ruku and sajdah (prostration) before the command of the imam invalidate the prayer?

Dear Brother / Sister,

A person who follows the imam should perform the rukns (parts) of the prayer right after the command of the imam. Bowing down for ruku, performing sajdah and standing up from ruku and sajdah before the command of the imam is not permissible.

When a person performs a rukn (part) of the prayer before the command of the imam, his prayer is invalidated.

For example, performing ruku and standing up from ruku before the imam... Or prostrating before the imam and sitting up from sajdah before the imam...

However, the wudu of this person is not invalidated. It is necessary for him to perform the prayer again since it is invalidated.

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