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:26:112 –

He said, "And what is my knowledge of what they used to do?  

He said, ‘And what do I know of what they may have been doing?
القرآن:٢٦:١١٢ –

قَالَ وَمَا عِلْمِي بِمَا كَانُوا يَعْمَلُونَ  

{قال وما علمي} أيّ علم لي {بما كانوا يعلمون}.

See similar narrations below:

Collected by Qurʾān, Aḥmad
quran:56:24 –

As reward for what they used to do.  

a reward (jazā’an is an object denoting reason or a verbal noun, with the operator being an implicit ˹verb˺, in other words, ‘We have appointed for them the mentioned as a reward’ or ‘We have rewarded them ˹this˺’) for what they used to do.
القرآن:٥٦:٢٤ –

جَزَاءً بِمَا كَانُوا يَعْمَلُونَ  

{جزاءً} مفعول له أو مصدر والعامل المقدر أي جعلنا لهم ما ذكر للجزاء أو جزيناهم {بما كانوا يعملون}.
ahmad:9991 – ʿAbd al-Raḥman > Zāʾidah > Abū al-Zinād > al-Aʿrajiʿan Abū Hurayrah

[Machine] It was said, "O Messenger of Allah, what about the newborn?" He said, "Allah knows best about what they have done."  

أحمد:٩٩٩١ – حَدَّثَنَا عَبْدُ الرَّحْمَنِ قَالَ حَدَّثَنَا زَائِدَةُ عَنِ أَبِي الزِّنَادِ عَنِ الْأَعْرَجِعَنِ أَبِي هُرَيْرَةَ قَالَ

قِيلَ يَا رَسُولَ اللهِ فَالْمَوْلُودُ؟ قَالَ اللهُ أَعْلَمُ بِمَا كَانُوا عَامِلِينَ