Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Prophet (peace and blessings be upon him) prayed Zuhr at Dhul-Hulayfah. Then his sacrificial camel was brought, and he (peace and blessings be upon him) marked it (ish'ar) on the right side of its hump and wiped the blood off it. Then he came to his mount and rode it, and when it rose with him onto al-Bayda', he (peace and blessings be upon him) made the talbiyah for Hajj.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8815