Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Prophet (peace and blessings be upon him) performed idtiba' (baring one shoulder while in ihram is called idtiba'), touched (the Black Stone) and said the takbir. Then he jogged three circuits, and when they reached the Yamani Corner and were out of sight of Quraysh, they would walk normally; then when they came into their view again, they would jog. Quraysh said: "They are like gazelles." Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: So it became a Sunnah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9249