Amr bin Dinar (may Allah have mercy on him) said: I heard Jabir bin Abdullah al-Ansari (may Allah be pleased with them both) relate that the Messenger of Allah (peace and blessings be upon him), during the building of the Ka'bah in the pre-Islamic era, was carrying stones with the people. He was wearing a waist-wrapper. His uncle Abbas (may Allah be pleased with him) said: O my nephew! If you were to take off your waist-wrapper and place it on your shoulders beneath the stones (it would be easier for you). Jabir (may Allah be pleased with him) said: He took off the waist-wrapper and put it on his shoulder, and at that very moment he fell down unconscious. After that he was never seen naked.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3225