Abu Qilabah (may Allah have mercy on him) said: Sayyiduna Malik bin al-Huwayrith (may Allah be pleased with him) used to come to us and say: "Shall I not tell you about the prayer of the Messenger of Allah (peace and blessings be upon him)?" Then he would pray outside the time of a prayer, and when he raised his head from the second prostration in the first rak'ah, he would sit upright, then stand up, supporting himself on the ground.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16691