صحيح البخاري Sahih Bukhari كتاب الأذان The Book of Adhan
بَابُ الصَّفِّ الأَوَّلِ:

(73) Chapter. The first row.

2 hadith
Hadith 720
حَدَّثَنَا أَبُو عَاصِمٍ ، عَنْ مَالِكٍ ، عَنْ سُمَيٍّ ، عَنْ أَبِي صَالِحٍ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ : قَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " الشُّهَدَاءُ الْغَرِقُ وَالْمَطْعُونُ وَالْمَبْطُونُ وَالْهَدِمُ .
Narrated Abu Huraira: The Prophet said, "Martyrs are those who die because of drowning, plague, an Abdominal disease, or of being buried alive by a falling building."
Hadith Reference Sahih Bukhari / The Book of Adhan / Hadith: 720
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 721
وَقَالَ : وَلَوْ يَعْلَمُونَ مَا فِي التَّهْجِيرِ لَاسْتَبَقُوا ، وَلَوْ يَعْلَمُونَ مَا فِي الْعَتَمَةِ وَالصُّبْحِ لَأَتَوْهُمَا وَلَوْ حَبْوًا ، وَلَوْ يَعْلَمُونَ مَا فِي الصَّفِّ الْمُقَدَّمِ لَاسْتَهَمُوا " .
And then he added, "If the people knew the Reward for the Zuhr prayer in its early time, they would race for it. If they knew the reward for the `Isha' and the Fajr prayers in congregation, they would join them even if they had to crawl. If they knew the reward for the first row, they would draw lots for it."
Hadith Reference Sahih Bukhari / The Book of Adhan / Hadith: 721
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة