Sayyiduna Malik bin al-Huwayrith (may Allah be pleased with him) said to his companions: "Shall I not show you how the prayer of the Messenger of Allah (peace and blessings be upon him) was?" This was outside the time of a prayer. So he stood, then bowed and said the takbir, then raised his head and stood for a short while, then prostrated, then raised his head, then waited, then prostrated, then raised his head, then waited a short while, then prostrated. This is the wording of Arim's narration.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16682