Sayyiduna Sa'd (may Allah be pleased with him) said: When the Messenger of Allah (peace and blessings be upon him) took the road of al-Fur', he said the talbiyah when his mount rose with him, and when he took the other road, he said the talbiyah upon climbing the height of al-Bayda'.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8989