Sayyiduna Muharrish al-Ka'bi (may Allah be pleased with him) said: "The Messenger of Allah (peace and blessings be upon him) performed Umrah from al-Ji'ranah, and I looked at his back; it was gleaming like an ingot of silver. And he arrived in the morning as though he had spent the night there."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17903