To make the Heart Tender (Ar-Riqaq)
Ṣaḥīḥ al-Bukhārī 6469
إِنَّ اللَّهَ خَلَقَ الرَّحْمَةَ يَوْمَ خَلَقَهَا مِائَةَ رَحْمَةٍ، فَأَمْسَكَ عِنْدَهُ تِسْعًا وَتِسْعِينَ رَحْمَةً، وَأَرْسَلَ فِي خَلْقِهِ كُلِّهِمْ رَحْمَةً وَاحِدَةً، فَلَوْ يَعْلَمُ الْكَافِرُ بِكُلِّ الَّذِي عِنْدَ اللَّهِ مِنَ الرَّحْمَةِ لَمْ يَيْأَسْ مِنَ الْجَنَّةِ، وَلَوْ يَعْلَمُ الْمُؤْمِنُ بِكُلِّ الَّذِي عِنْدَ اللَّهِ مِنَ الْعَذَابِ لَمْ يَأْمَنْ مِنَ النَّارِ
inna-Llāh khalaqa ar-raḥmaha yawma khalaqahā māʾaha raḥmatin, fa-amsaka ʿindah tisʿan watisʿīna raḥmatan, wa-arsala fī khalqihi kullihim raḥmatan wāḥidatan, falaw yaʿlamu al-kāfiru bikulli adh-dhī ʿinda-Llāh mina ar-raḥmah lam yayʾas mina al-jannah, walaw yaʿlamu al-muʾminu bikulli adh-dhī ʿinda-Llāh mina al-ʿadhābi lam yaʾman mina an-nāri
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Abu Huraira:I heard Allah's Messenger (ﷺ) saying, Verily Allah created Mercy. The day He created it, He made it into one hundred parts. He withheld with Him ninety-nine parts, and sent its one part to all His creatures. Had the non-believer known of all the Mercy which is in the Hands of Allah, he would not lose hope of entering Paradise, and had the believer known of all the punishment which is present with Allah, he would not consider himself safe from the Hell-Fire
Source
Ṣaḥīḥ al-Bukhārī · 6469