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muslim:2752c – Muḥammad b. ʿAbdullāh b. Numayr from my father > ʿAbd al-Malik > ʿAṭāʾ > Abū Hurayrah

There are one hundred (parts of) mercy for Allah and He has sent down out of these one part of mercy upon the jinn and human beings and animals and the insects, and it is because of this (one part) that they love one another, show kindness to one another and even the beast treats its young one with affection, and Allah has reserved ninety nine parts of mercy with which He would treat His servants on the Day of Resurrection.  

مسلم:٢٧٥٢c – حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا أَبِي حَدَّثَنَا عَبْدُ الْمَلِكِ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ لِلَّهِ مِائَةَ رَحْمَةٍ أَنْزَلَ مِنْهَا رَحْمَةً وَاحِدَةً بَيْنَ الْجِنِّ وَالإِنْسِ وَالْبَهَائِمِ وَالْهَوَامِّ فَبِهَا يَتَعَاطَفُونَ وَبِهَا يَتَرَاحَمُونَ وَبِهَا تَعْطِفُ الْوَحْشُ عَلَى وَلَدِهَا وَأَخَّرَ اللَّهُ تِسْعًا وَتِسْعِينَ رَحْمَةً يَرْحَمُ بِهَا عِبَادَهُ يَوْمَ الْقِيَامَةِ  

See similar narrations below:

Collected by Ibn Mājah, Aḥmad, Ibn Ḥibbān, Suyūṭī
ibnmajah:4293 – Abū Bakr b. Abū Shaybah > Yazīd b. Hārūn > ʿAbd al-Malik > ʿAṭāʾ > Abū Hurayrah

“Allah has one hundred (degrees of) mercy, of which He has shared one between all of creation, by virtue of which you show mercy and compassion towards one another and the wild animals show compassion towards their young. And He has kept back ninety-nine (degrees of) mercy by virtue of which He will show mercy to His slaves on the Day of Resurrection.”  

ابن ماجة:٤٢٩٣ – حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ أَنْبَأَنَا عَبْدُ الْمَلِكِ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ إِنَّ لِلَّهِ مِائَةَ رَحْمَةٍ قَسَمَ مِنْهَا رَحْمَةً بَيْنَ جَمِيعِ الْخَلاَئِقِ فَبِهَا يَتَرَاحَمُونَ وَبِهَا يَتَعَاطَفُونَ وَبِهَا تَعْطِفُ الْوَحْشُ عَلَى أَوْلاَدِهَا وَأَخَّرَ تِسْعَةً وَتِسْعِينَ رَحْمَةً يَرْحَمُ بِهَا عِبَادَهُ يَوْمَ الْقِيَامَةِ  

ahmad:9609 – Yaḥyá > ʿAbd al-Malik > ʿAṭāʾ > Abū Hurayrah

“Allah has one hundred (degrees of) mercy, of which He has shared one between all of creation, by virtue of which you show mercy and compassion towards one another and the wild animals show compassion towards their young. And He has kept back ninety-nine (degrees of) mercy by virtue of which He will show mercy to His slaves on the Day of Resurrection.” (Using translation from Ibn Mājah 4293)   

أحمد:٩٦٠٩ – حَدَّثَنَا يَحْيَى عَنْ عَبْدِ الْمَلِكِ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ لِلَّهِ مِائَةُ رَحْمَةٍ أَنْزَلَ مِنْهَا رَحْمَةً وَاحِدَةً بَيْنَ الْإِنْسِ وَالْجِنِّ وَالْهَوَامِّ فَبِهَا يَتَعَاطَفُونَ وَبِهَا يَتَرَاحَمُونَ وَبِهَا تَعْطِفُ الْوَحْشُ عَلَى أَوْلَادِهَا وَأَخَّرَ تِسْعَةً وَتِسْعِينَ إِلَى يَوْمِ الْقِيَامَةِ يَرْحَمُ بِهَا عِبَادَهُ  

ذِكْرُ السَّبَبِ الَّذِي مِنْ أَجْلِهِ يُكْمِلُ اللَّهُ هَذِهِ الرَّحْمَةَ يَوْمَ الْقِيَامَةِ

ibnhibban:6147 – Muḥammad b. Aḥmad b. al-Ḥusayn > Jaddī al-Ḥasan b. ʿĪsá > Ibn al-Mubārak > ʿAbd al-Malik b. Abū Sulaymān > ʿAṭāʾ > Abū Hurayrah

“Allah has one hundred (degrees of) mercy, of which He has shared one between all of creation, by virtue of which you show mercy and compassion towards one another and the wild animals show compassion towards their young. And He has kept back ninety-nine (degrees of) mercy by virtue of which He will show mercy to His slaves on the Day of Resurrection.” (Using translation from Ibn Mājah 4293)   

ابن حبّان:٦١٤٧ – أَخْبَرَنَا مُحَمَّدُ بْنُ أَحْمَدَ بْنِ الْحُسَيْنِ قَالَ حَدَّثَنَا جَدِّي الْحَسَنُ بْنُ عِيسَى قَالَ حَدَّثَنَا ابْنُ الْمُبَارَكِ قَالَ حَدَّثَنَا عَبْدُ الْمَلِكِ بْنُ أَبِي سُلَيْمَانَ عَنْ عَطَاءٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ «إِنَّ لِلَّهَ مِائَةَ رَحْمَةٍ أَنْزَلَ مِنْهَا رَحْمَةً وَاحِدَةً بَيْنَ الْجِنِّ وَالْإِنْسِ وَالْبَهَائِمِ فَبِهَا يَتَعَاطَفُونَ وَبِهَا يَتَرَاحَمُونَ وَبِهَا تَعْطِفُ الْوحُوشُ عَلَى أَوْلَادِهَا وَأَخَّرَ تِسْعًا وَتِسْعِينَ رَحْمَةً يَرْحَمُ بِهَا عِبَادَهُ يَوْمَ الْقِيَامَةِ»  

suyuti:6963a –
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السيوطي:٦٩٦٣a –

"إِنَّ للَّهِ ﷻ مائَةَ رحمة، أَنزل منها رحمةً واحدةً بين الجن والإِنس والبهائِم والهوامِّ، فَبِهَا يَتَعَاطَفُون، وَبَهَا يَتَرَاحَمُونَ، وبها تَعْطِفُ الوحشُ على وَلَدِهَا، وَأَخَّرَ اللَّهُ تِسْعًا وتِسْعِينَ رَحْمَةً، يَرْحَمُ بِهَا عبادَهُ يومَ القيامةِ".  

[م] مسلم [هـ] ابن ماجة عن أبى هريرة، [م] مسلم عن سلمان