Muwatta Imam Malik Book of Jihad, Hadith 41

Yahya related to me from Malik that Yahya ibn Said said, "On the Day of Uhud, The Messenger of Allah ﷺ said, 'Who will bring me news of Sad ibn al-Rabi al-Ansari?' a man said, 'Me, Messenger of Allah!' So the man went around among the slain, and Sad ibn al-Rabi said to him, 'What are you doing?' The man said to him, 'The Messenger of Allah ﷺ sent me to bring him news of you.' He said, 'Go to him, and give him my greetings, and tell him that I have been stabbed twelve times, and am mortally wounded. Tell your people that they will have no excuse with Allah if the Messenger of Allah ﷺ is slain while one of them is still alive.' "

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، قَالَ لَمَّا كَانَ يَوْمُ أُحُدٍ قَالَ رَسُولُ اللَّهِ ﷺ " مَنْ يَأْتِينِي بِخَبَرِ سَعْدِ بْنِ الرَّبِيعِ الأَنْصَارِيِّ " . فَقَالَ رَجُلٌ أَنَا يَا رَسُولَ اللَّهِ . فَذَهَبَ الرَّجُلُ يَطُوفُ بَيْنَ الْقَتْلَى فَقَالَ لَهُ سَعْدُ بْنُ الرَّبِيعِ مَا شَأْنُكَ فَقَالَ لَهُ الرَّجُلُ بَعَثَنِي إِلَيْكَ رَسُولُ اللَّهِ ﷺ لآتِيَهُ بِخَبَرِكَ . قَالَ فَاذْهَبْ إِلَيْهِ فَأَقْرِئْهُ مِنِّي السَّلاَمَ وَأَخْبِرْهُ أَنِّي قَدْ طُعِنْتُ اثْنَتَىْ عَشْرَةَ طَعْنَةً وَأَنِّي قَدْ أُنْفِذَتْ مَقَاتِلِي وَأَخْبِرْ قَوْمَكَ أَنَّهُ لاَ عُذْرَ لَهُمْ عِنْدَ اللَّهِ إِنْ قُتِلَ رَسُولُ اللَّهِ ﷺ وَوَاحِدٌ مِنْهُمْ حَىٌّ .