Hadithcore
Sunan Abi Dawud, 1694
sahih· Al-Albani

Narrated AbdurRahman ibn Awf:

I heard the Messenger of Allah (ﷺ) say: Allah the Exalted has said: I am Compassionate, and this has been derived from mercy. I have derived its name from My name. If anyone joins it, I shall join him, and if anyone cuts it off, I shall cut him off.

حَدَّثَنَا مُسَدَّدٌ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ قَالاَ حَدَّثَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ أَبِي سَلَمَةَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏

‏ قَالَ اللَّهُ أَنَا الرَّحْمَنُ وَهِيَ الرَّحِمُ شَقَقْتُ لَهَا اسْمًا مِنَ اسْمِي مَنْ وَصَلَهَا وَصَلْتُهُ وَمَنْ قَطَعَهَا بَتَتُّهُ ‏

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References2 variants
In-Book Reference
Book 9, Hadith 139
English Reference
Book 9, Hadith 1690