Is there a Prophetic Hadith stating that "three movements invalidate prayer"?

The gist of the fatwa (definition) is that specifying the nullifying movements in prayer as three or more has no definitive basis. The actions of the Prophet (peace be upon him) sometimes exceeded three movements. Therefore, determining what is considered "many" or "few" is left to common practice. The Shafi'is hold that three consecutive movements are considered many and invalidate the prayer.