Sahih Bukhari, Chapter: Characteristics of Prayer

Abu Qilaba said, "Malik bin Huwairith came to us and led us in the prayer in this mosque of ours and said, 'I lead you in prayer but I do not want to offer the prayer but just to show you how Allah's Apostle performed his prayers." I asked Abu Qilaba, "How was the prayer of Malik bin Huwairith?" He replied, "Like the prayer of this Sheikh of ours-- i.e. 'Amr bin Salima." That Sheikh used to pronounce the Takbir perfectly and when he raised his head from the second prostration he would sit for a while and then support himself on the ground and get up.