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وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِى شَيْبَةَ وَمُحَمَّدُ بْنُ الْعَلاَءِ الْهَمْدَانِىُّ كِلاَهُمَا عَنِ ابْنِ نُمَيْرٍ قَالَ ابْنُ الْعَلاَءِ حَدَّثَنَا ابْنُ نُمَيْرٍ حَدَّثَنَا هِشَامٌ عَنْ أَبِيهِ عَنْ عَائِشَةَ قَالَتْ أُصِيبَ سَعْدٌ يَوْمَ الْخَنْدَقِ رَمَاهُ رَجُلٌ مِنْ قُرَيْشٍ يُقَالُ لَهُ ابْنُ الْعَرِقَةِ. رَمَاهُ فِى الأَكْحَلِ فَضَرَبَ عَلَيْهِ رَسُولُ اللَّهِ -صلى الله عليه وسلم- خَيْمَةً فِى الْمَسْجِدِ يَعُودُهُ مِنْ قَرِيبٍ فَلَمَّا رَجَعَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- مِنَ الْخَنْدَقِ وَضَعَ السِّلاَحَ فَاغْتَسَلَ فَأَتَاهُ جِبْرِيلُ وَهُوَ يَنْفُضُ رَأْسَهُ مِنَ الْغُبَارِ فَقَالَ وَضَعْتَ السِّلاَحَ وَاللَّهِ مَا وَضَعْنَاهُ اخْرُجْ إِلَيْهِمْ. فَقَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « فَأَيْنَ ». فَأَشَارَ إِلَى بَنِى قُرَيْظَةَ فَقَاتَلَهُمْ رَسُولُ اللَّهِ -صلى الله عليه وسلم- فَنَزَلُوا عَلَى حُكْمِ رَسُولِ اللَّهِ -صلى الله عليه وسلم- فَرَدَّ رَسُولُ اللَّهِ -صلى الله عليه وسلم- الْحُكْمَ فِيهِمْ إِلَى سَعْدٍ قَالَ فَإِنِّى أَحْكُمُ فِيهِمْ أَنْ تُقْتَلَ الْمُقَاتِلَةُ وَأَنْ تُسْبَى الذُّرِّيَّةُ وَالنِّسَاءُ وَتُقْسَمَ أَمْوَالُهُمْ.
It was narrated that 'Aishah said: Sa'd was wounded on the day of (the battle of) Al-Khandaq, when a man from Quraish who was called Ibn Al-'Ariqah, shot him in the artery of his forearm. The Messenger of Allah (s.a.w) set up a tent for him in the Masjid so that he could visit him easily. When the Messenger of Allah (s.a.w) returned from Al-Khandaq, he lay down his arms and took a bath (ghusl). Then Jibril came to him, brushing dust from his hair, and said: Have you laid down your arms? By Allah, we have not laid them down. Go out to them. The Messenger of Allah (s.a.w) said: "Where?" He pointed towards Banu Quraizah. So the Messenger of Allah (s.a.w) fought them, and they surrendered, subject to the ruling of the Messenger of Allah (s.a.w). The Messenger of Allah (s.a.w) referred judgement concerning them to Sa'd, who said: I judge that their warriors should be killed, and their children and women should be taken prisoner, and their wealth should be divided.
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari