the Prophet ﷺ set the blood money at twelve thousand (Dirham). He said: “This is what Allah says: 'And they could not find any cause to do so except that Allah and his Messenger ﷺ had enriched them of His bounty.'” He said: “By their taking the blood money.”
أَنَّ النَّبِيَّ ﷺ جَعَلَ الدِّيَةَ اثْنَىْ عَشَرَ أَلْفًا قَالَ ذَلِكَ قَوْلُهُ {وَمَا نَقَمُوا إِلاَّ أَنْ أَغْنَاهُمُ اللَّهُ وَرَسُولُهُ مِنْ فَضْلِهِ} قَالَ بِأَخْذِهِمُ الدِّيَةَ
"A man killed another man during the time of the Messenger of Allah, and the Prophet set the Diyah at twelve thousand. And he mentioned His saying: And they could not find any cause to do so except that Allah and His Messenger had enriched them of His Bounty. concerning them taking the Dyah." (Hasan) This is the wording of Abu Dawud.
قَتَلَ رَجُلٌ رَجُلاً عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فَجَعَلَ النَّبِيُّ ﷺ دِيَتَهُ اثْنَىْ عَشَرَ أَلْفًا وَذَكَرَ قَوْلَهُ إِلاَّ أَنْ أَغْنَاهُمُ اللَّهُ وَرَسُولُهُ مِنْ فَضْلِهِ فِي أَخْذِهِمُ الدِّيَةَ وَاللَّفْظُ لأَبِي دَاوُدَ