Muwatta Imam Malik Book of Prayer in Congregation, Hadith 6

Yahya related to me from Malik from Sumayy, the mawla of Abu Bakr ibn Abd ar-Rahman from Abu Salih from Abu Hurayra that the Messenger of Allah ﷺ said, "If a man who is walking along a road finds a branch of thorns on the road and removes it, Allah thanks him for doing it and forgives him."
He also said, "Martyrs are five:
the one killed by a plague, the one killed by a disease of the belly, the one who drowns, the one killed by a collapsing building, and the martyr in the path of Allah.'
He also said, "If people knew what there was in the call to prayer and the first row, and they could find no other way except to draw lots for it, they would draw lots for it. And if they knew what there was in doing dhuhr at its time, they would race each other to it. And if they knew what there was in the prayers of isha and maghrib, they would come to them even if they had to crawl .

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ سُمَىٍّ، مَوْلَى أَبِي بَكْرِ بْنِ عَبْدِ الرَّحْمَنِ عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ " بَيْنَمَا رَجُلٌ يَمْشِي بِطَرِيقٍ إِذْ وَجَدَ غُصْنَ شَوْكٍ عَلَى الطَّرِيقِ فَأَخَّرَهُ فَشَكَرَ اللَّهُ لَهُ فَغَفَرَ لَهُ " . وَقَالَ " الشُّهَدَاءُ خَمْسَةٌ الْمَطْعُونُ وَالْمَبْطُونُ وَالْغَرِقُ وَصَاحِبُ الْهَدْمِ وَالشَّهِيدُ فِي سَبِيلِ اللَّهِ " . وَقَالَ " لَوْ يَعْلَمُ النَّاسُ مَا فِي النِّدَاءِ وَالصَّفِّ الأَوَّلِ ثُمَّ لَمْ يَجِدُوا إِلاَّ أَنْ يَسْتَهِمُوا عَلَيْهِ لاَسْتَهَمُوا وَلَوْ يَعْلَمُونَ مَا فِي التَّهْجِيرِ لاَسْتَبَقُوا إِلَيْهِ وَلَوْ يَعْلَمُونَ مَا فِي الْعَتَمَةِ وَالصُّبْحِ لأَتَوْهُمَا وَلَوْ حَبْوًا " .