Sahih al-Bukhari, Volume 3, Book 43, Hadith 652 (USC-MSA) ⓘ
Narrated Abu Huraira: Allah's Messenger said, "While a man was on the way, he found a thorny branch of a tree there on the way and removed it. Allah thanked him for that deed and forgave him."
حَدَّثَنَا عَبْدُ اللَّهِ، أَخْبَرَنَا مَالِكٌ، عَنْ سُمَىٍّ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " بَيْنَمَا رَجُلٌ يَمْشِي بِطَرِيقٍ، وَجَدَ غُصْنَ شَوْكٍ فَأَخَذَهُ، فَشَكَرَ اللَّهُ لَهُ، فَغَفَرَ لَهُ " .
also referenced under: Book 46, Hadith 33 (In-Book) & Hadith 2472 (DarusSalam)