Sunnah.com reference : Book 8, Hadith 6USC-MSA web (English) reference : Book 8, Hadith 6Arabic reference : Book 8, Hadith 293
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, may Allah bless him and grant him peace, 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:
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 صلى الله عليه وسلم 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 ‏"‏ ‏.‏