While Messenger of Allah ﷺ was carrying stones (along) with the people of Mecca for (the building of) the Kaʿba wearing an Izar (waist-sheet cover), his uncle Al-ʿAbbas said to him, "O my nephew! (It would be better) if you take off your Izar and put it over your shoulders underneath the stones." So he took off his Izar and put it over his shoulders, but he fell unconscious and since then he had never been seen naked.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَنْقُلُ مَعَهُمُ الْحِجَارَةَ لِلْكَعْبَةِ وَعَلَيْهِ إِزَارُهُ فَقَالَ لَهُ الْعَبَّاسُ عَمُّهُ يَا ابْنَ أَخِي لَوْ حَلَلْتَ إِزَارَكَ فَجَعَلْتَ عَلَى مَنْكِبَيْكَ دُونَ الْحِجَارَةِ قَالَ فَحَلَّهُ فَجَعَلَهُ عَلَى مَنْكِبَيْهِ فَسَقَطَ مَغْشِيًّا عَلَيْهِ فَمَا رُئِيَ بَعْدَ ذَلِكَ عُرْيَانًا ﷺ  

While Messenger of Allah ﷺ was carrying stones (along) with the people of Mecca for (the building of) the Kaʿba wearing an Izar (waist-sheet cover), his uncle Al-ʿAbbas said to him, "O my nephew! (It would be better) if you take off your Izar and put it over your shoulders underneath the stones." So he took off his Izar and put it over his shoulders, but he fell unconscious and since then he had never been seen naked. (Using translation from Bukhārī 364)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يَنْقُلُ مَعَهُمْ حِجَارَةَ الْكَعْبَةِ وَعَلَيْهِ إِزَارٌ فَقَالَ لَهُ الْعَبَّاسُ عَمُّهُ يَا ابْنَ أَخِي لَوْ حَلَلْتَ إِزَارَكَ فَجَعَلْتَهُ عَلَى مَنْكِبَيْكَ دُونَ الْحِجَارَةِ قَالَ فَحَلَّهُ فَجَعَلَهُ عَلَى مَنْكِبَيْهِ فَسَقَطَ مَغْشِيًّا عَلَيْهِ فَمَا رُئِيَ بَعْدَ ذَلِكَ الْيَوْمِ عُرْيَانًا  

The Messenger of Allah ﷺ was carrying along with them (his people) stones for the Ka'ba and there was a waist wrapper around him. His uncle," Abbas, said to him: 0 son of my brother! if you take off the lower garment and place it on the shoulders underneath the stones, it would be better. He (the Holy Prophet) took it off and placed it on his shoulder and fell down unconscious. He (the narrator) said: Never was he seen naked after that day. (Using translation from Muslim 340b)  

سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللهِ يَقُولُ إِنَّ النَّبِيَّ ﷺ كَانَ يَنْقُلُ مَعَهُمُ الْحِجَارَةَ لِلْكَعْبَةِ وَعَلَيْهِ إِزَارُهُ فَقَالَ لَهُ الْعَبَّاسُ عَمُّهُ يَا ابْنَ أَخِي لَوْ حَلَلْتَ إِزَارَكَ فَجَعَلْتَهُ عَلَى مَنْكِبَيْكَ دُونَ الْحِجَارَةِ قَالَ فَحَلَّهُ فَجَعَلَهُ عَلَى مَنْكِبَيْهِ فَسَقَطَ مَغْشِيًّا عَلَيْهِ فَمَا رُئِيَ بَعْدَ ذَلِكَ الْيَوْمِ عُرْيَانًا  

" عَنْ جَابِرٍ: أَنَّ النَّبِىَّ ﷺ كَانَ يَنْقُلُ مَعَهُمُ الْحجَارَةَ لِلكَعْبَةِ وعَلَيْهِ إِزَارُهُ، فَقَالَ لَهُ الْعَبَّاسُ عَمُّهُ: يَا بْنَ أَخِى! لَو حللت (*) إِزَارَكَ فَجَعَلْتَهُ عَلَى مَنْكِبَيْكَ دُونَ الْحِجَارَةِ، قَالَ: فحلَّه فَجَعَلَهُ عَلَى مَنْكَبِيْهِ، فَسَقَطَ مَغْشِيًا عَلَيْهِ، فَمَا رُئىَ بَعْدَ ذَلِكَ عُرْيَانًا ".