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:15:53 –

˹The angels˺ said, "Fear not. Indeed, we give you good tidings of a learned boy."  

They said, ‘Do not be afraid; lo!, we, are the messengers of your Lord ˹sent to˺, give you good tidings of a knowledgeable boy’, one very knowledgeable ˹boy˺, namely, Isaac — as we mentioned in sūrat Hūd ˹Q. 11:69˺.
القرآن:١٥:٥٣ –

قَالُوا لَا تَوْجَلْ إِنَّا نُبَشِّرُكَ بِغُلَامٍ عَلِيمٍ  

{قالوا لا توجل} لا تخف {إنا} رسل ربك {نبشرك بغلام عليم} ذي علم كثير هو إسحاق كما ذكرنا في سورة هود.