Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that Sayyiduna Usamah bin Zayd (may Allah be pleased with them both) said: The Prophet (peace and blessings be upon him) returned from Arafah while I was riding behind him. He (peace and blessings be upon him) kept pulling back the rein of his she-camel, until the hair of her neck almost touched the front of the saddle, and he (peace and blessings be upon him) was saying: "O people! Hold fast to calm and dignity; righteousness is not in making camels run."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9485