Jami` at-Tirmidhi, Volume 4, Book 36, Hadith 2533 (DarusSalam) ⓘ

'Abdullah bin Mas'ud narrated that the Prophet (s.a.w) said: "Indeed, a woman from the wives of the people of Paradise, the whiteness of her shin is visible through seventy garments until her marrow is seen, and that is because Allah, he Exalted, says: As if they are corundum and Marjan. So, as for the corundum, it is a stone that if you were to enter a wire through it, then you polished its cloudiness away, you would surely be able to see it through it."

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ عَبْدِ الرَّحْمَنِ، حَدَّثَنَا فَرْوَةُ بْنُ أَبِي الْمَغْرَاءِ، أَخْبَرَنَا عَبِيدَةُ بْنُ حُمَيْدٍ، عَنْ عَطَاءِ بْنِ السَّائِبِ، عَنْ عَمْرِو بْنِ مَيْمُونٍ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ إِنَّ الْمَرْأَةَ مِنْ نِسَاءِ أَهْلِ الْجَنَّةِ لَيُرَى بَيَاضُ سَاقِهَا مِنْ وَرَاءِ سَبْعِينَ حُلَّةً حَتَّى يُرَى مُخُّهَا وَذَلِكَ بِأَنَّ اللَّهَ يَقُولُ‏:‏ ‏(‏كَأََنَّهُنَّ الْيَاقُوتُ وَالْمَرْجَانُ ‏)‏ فَأَمَّا الْيَاقُوتُ فَإِنَّهُ حَجَرٌ لَوْ أَدْخَلْتَ فِيهِ سِلْكًا ثُمَّ اسْتَصْفَيْتَهُ لأُرِيتَهُ مِنْ وَرَائِهِ ‏"‏ ‏.‏