Salim bin Abdullah (may Allah have mercy on him) said that Abdullah (may Allah be pleased with them both) would throw seven pebbles at the nearest Jamrah, saying the takbir after each pebble. Then he would go forward and stand for a long time facing the qiblah, raising his hands and supplicating. Then he would stone the middle Jamrah, and likewise he would stand on the left side facing the qiblah, standing for a long time, raising his hands and supplicating. Then he would stone the Jamrah of al-Aqabah from the bottom of the valley and would not stand there, and he would say: I saw the Messenger of Allah (peace and blessings be upon him) doing it like this.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9663