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
ahmad-zuhd:1213 – ʿAbdullāh > Abū Bakr > Yaḥyá b. Wāḍiḥ > Yaḥyá b. ʿAmr from his father

[Machine] "From Abu Al-Jawza' (a companion of the Prophet): "Except for those who come to Allah with a sound heart." [Surah Ash-Shu'ara 89] He said: "There is no god but Allah."  

الزهد لأحمد:١٢١٣ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي أَبُو بَكْرٍ حَدَّثَنَا يَحْيَى بْنُ وَاضِحٍ عَنْ يَحْيَى بْنِ عَمْرٍو عَنْ أَبِيهِ

عَنْ أَبِي الْجَوْزَاءِ {إِلَّا مَنْ أَتَى اللَّهَ بِقَلْبٍ سَلِيمٍ} [الشعراء 89] قَالَ لَا إِلَهَ إِلَّا اللَّهُ  

See similar narrations below:

Collected by Qurʾān
quran:26:89 –

But only one who comes to Allah with a sound heart."  

except him who comes to God with a heart that is sound, ˹free˺ from idolatry and hypocrisy — and this is the heart of the believer, whom such ˹things˺ will avail.
القرآن:٢٦:٨٩ –

إِلَّا مَنْ أَتَى اللَّهَ بِقَلْبٍ سَلِيمٍ  

{إلا} لكن {من أتى الله بقلب سليم} من الشرك والنفاق وهو قلب المؤمن فإنه ينفعه ذلك.