To make the Heart Tender (Ar-Riqaq)
Ṣaḥīḥ al-Bukhārī 6569
لاَ يَدْخُلُ أَحَدٌ الْجَنَّةَ إِلاَّ أُرِيَ مَقْعَدَهُ مِنَ النَّارِ، لَوْ أَسَاءَ، لِيَزْدَادَ شُكْرًا، وَلاَ يَدْخُلُ النَّارَ أَحَدٌ إِلاَّ أُرِيَ مَقْعَدَهُ مِنَ الْجَنَّةِ، لَوْ أَحْسَنَ، لِيَكُونَ عَلَيْهِ حَسْرَةً
lā yadkhulu aḥadun al-jannaha illā uriya maqʿadah mina an-nāri, law asāʾa, liyazdāda shukran, walā yadkhulu an-nāra aḥadun illā uriya maqʿadah mina al-jannah, law aḥsana, liyakūna ʿalayhi ḥasratan
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Abu Huraira:The Prophet (ﷺ) said, "None will enter Paradise but will be shown the place he would have occupied in the (Hell) Fire if he had rejected faith, so that he may be more thankful; and none will enter the (Hell) Fire but will be shown the place he would have occupied in Paradise if he had faith, so that may be a cause of sorrow for him
Source
Ṣaḥīḥ al-Bukhārī · 6569