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:38:88 –

And you will surely know ˹the truth of˺ its information after a time."  

And you will assuredly come to know, O disbelievers of Mecca, its tiding, the news of its truth, in ˹due˺ time’, that is to say, on the Day of Resurrection (‘ilm, ‘knowing’, is here being used in the sense of ‘urf, ‘experience’; the prefixed lām ˹in la-ta‘lamunna, ‘you will assuredly know’˺ is for an implicit oath, in other words ˹what is meant is˺ wa’Llāhi ˹la-ta‘lamunna, ‘By God you will assuredly know’˺). Meccan, except for verses 52, 53 and 54, which are Medinese; it consists of 75 verses, revealed after ˹sūrat˺ Saba’.
القرآن:٣٨:٨٨ –

وَلَتَعْلَمُنَّ نَبَأَهُ بَعْدَ حِينٍ  

{ولتعلمن} يا كفار مكة {نبأه} خبر صدقه {بعد حين} أي يوم القيامة، وعلم بمعنى: عرف واللام قبلها لام قسم مقدَّر: أي والله.