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:16:19 –

And Allah knows what you conceal and what you declare.  

And God knows what you keep secret and what you disclose.
القرآن:١٦:١٩ –

وَاللَّهُ يَعْلَمُ مَا تُسِرُّونَ وَمَا تُعْلِنُونَ  

{والله يعلم ما تسرون وما تعلنون}.

See similar narrations below:

Collected by Qurʾān
quran:2:77 –

But do they not know that Allah knows what they conceal and what they declare?  

God says: Know they not (the interrogative is affirmative, the inserted wāw ˹of a-wa-lā˺ is to indicate the supplement) that God knows what they keep secret and what they proclaim?, that is, what they hide and what they reveal in this matter and all other matters, so that they may desist from these things.
القرآن:٢:٧٧ –

أَوَلَا يَعْلَمُونَ أَنَّ اللَّهَ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ  

قال تعالى {أو لا يعلمون} الاستفهام للتقرير والواو الداخلة عليها للعطف {أن الله يعلم ما يسرون وما يعلنون} ما يخفون وما يظهرون من ذلك وغيره فيرعَوُوا عن ذلك.