Sayyiduna Qays bin Sa'd al-Ansari (may Allah be pleased with him), who was the standard-bearer of the Messenger of Allah (peace and blessings be upon him), intended to perform Hajj. He combed one side of his head, then saw that his sacrificial animal had already been garlanded; so he raised the talbiyah and left the other side.
Hadith Referenceالمعجم الكبير للطبراني / باب القاف / 15972