صحيح البخاري Sahih Bukhari كتاب الأذان The Book of Adhan
بَابُ فَضْلِ التَّهْجِيرِ إِلَى الظُّهْرِ:

(32) Chapter. The superiority of offering the Zuhr prayer early.

3 hadith
Hadith 652
حَدَّثَنَا قُتَيْبَةُ ، عَنْ مَالِكٍ ، عَنْ سُمَيٍّ مَوْلَى أَبِي بَكْرِ ، عَنْ أَبِي صَالِحٍ السَّمَّانِ ، عَنْ أَبِي هُرَيْرَةَ ، أَنّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ : " بَيْنَمَا رَجُلٌ يَمْشِي بِطَرِيقٍ وَجَدَ غُصْنَ شَوْكٍ عَلَى الطَّرِيقِ ، فَأَخَّرَهُ فَشَكَرَ اللَّهُ لَهُ فَغَفَرَ لَهُ .
Narrated Abu Huraira: Allah's Apostle said, "While a man was going on a way, he saw a thorny branch and removed it from the way and Allah became pleased by his action and forgave him for that."
Hadith Reference Sahih Bukhari / The Book of Adhan / Hadith: 652
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 653
ثُمَّ قَالَ : الشُّهَدَاءُ خَمْسَةٌ الْمَطْعُونُ وَالْمَبْطُونُ وَالْغَرِيقُ وَصَاحِبُ الْهَدْمِ وَالشَّهِيدُ فِي سَبِيلِ اللَّهِ ، وَقَالَ : لَوْ يَعْلَمُ النَّاسُ مَا فِي النِّدَاءِ وَالصَّفِّ الْأَوَّلِ ، ثُمَّ لَمْ يَجِدُوا إِلَّا أَنْ يَسْتَهِمُوا لَاسْتَهَمُوا عَلَيْهِ .
Then the Prophet said, "Five are martyrs: One who dies of plague, one who dies of an Abdominal disease, one who dies of drowning, one who is buried alive (and) dies and one who is killed in Allah's cause." (The Prophet further said, "
Hadith Reference Sahih Bukhari / The Book of Adhan / Hadith: 653
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة
Hadith 654
وَلَوْ يَعْلَمُونَ مَا فِي التَّهْجِيرِ لَاسْتَبَقُوا إِلَيْهِ ، وَلَوْ يَعْلَمُونَ مَا فِي الْعَتَمَةِ وَالصُّبْحِ لَأَتَوْهُمَا وَلَوْ حَبْوًا " .
If the people knew the reward for pronouncing the Adhan and for standing in the first row (in the congregational prayer) and found no other way to get it except by drawing lots they would do so, and if they knew the reward of offering the Zuhr prayer early (in its stated time), they would race for it and if they knew the reward for `Isha' and Fajr prayers in congregation, they would attend them even if they were to crawl.
Hadith Reference Sahih Bukhari / The Book of Adhan / Hadith: 654
Hadith Grading محدثین: أحاديث صحيح البخاريّ كلّها صحيحة