It is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "People will be resurrected on the Day of Resurrection, and I and my Ummah will be upon a hill. My Lord, the Mighty and Majestic, will clothe me in a red garment, then permission (for intercession) will be given to me, and I will say whatever Allah wills me to say. That is the Praised Station (al-Maqam al-Mahmud)."
Hadith Referenceالمعجم الكبير للطبراني / باب الكاف / 16192