Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:52:24 –

There will circulate among them ˹servant˺ boys ˹especially˺ for them, as if they were pearls well-protected.  

And there will circulate from all around them, for service, youths, delicate ˹in demeanour˺, of their own, as if, in terms of their beauty and immaculateness, they were hidden pearls, preserved inside shells, because when it ˹a pearl˺ is inside it, it is better than one that is not.
القرآن:٥٢:٢٤ –

وَيَطُوفُ عَلَيْهِمْ غِلْمَانٌ لَهُمْ كَأَنَّهُمْ لُؤْلُؤٌ مَكْنُونٌ  

{ويطوف عليهم} للخدمة {غلمان} أرقاء {لهم كأنهم} حسنا ولطافة {لؤلؤ مكنون} مصون في الصدف لأنه فيها أحسن منه في غيرها.