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:10:16 –

Say, "If Allah had willed, I would not have recited it to you, nor would He have made it known to you, for I had remained among you a lifetime before it. Then will you not reason?"  

Say: ‘If God had willed I would not have recited it to you, nor would He have made it known to you, ˹nor˺ would He have made you aware of it (the lā ˹of wa-lā adrākum˺ is for negation, and is a supplement to what preceded; a variant reading has the lām ˹sc. la-adrākum, ‘He would have made it known to you’˺ as the response to the ˹conditional˺ law, ‘if’, in other words, He would have made it known to you by the tongue of someone other than myself). For I have already dwelt among you a ˹whole˺ lifetime, of forty years, before this ˹Qur’ān˺, not relating to you anything ˹of the sort˺, so will you not understand?’, that this ˹Qur’ān˺ is not from myself?
القرآن:١٠:١٦ –

قُلْ لَوْ شَاءَ اللَّهُ مَا تَلَوْتُهُ عَلَيْكُمْ وَلَا أَدْرَاكُمْ بِهِ ۖ فَقَدْ لَبِثْتُ فِيكُمْ عُمُرًا مِنْ قَبْلِهِ ۚ أَفَلَا تَعْقِلُونَ  

{قل لو شاء الله ما تلوته عليكم ولا أدراكم} أعلمكم {به} ولا نافية عطف على ما قبله، وفي قراءة بلام جواب لو أي لأعلمكم به على لسان غيري {فقد لبثت} مكثت {فيكم عمرا} سنينا أربعين {من قبله} لا أحدثكم بشيء {أفلا تعقلون} أنه ليس من قِبَلي.