Sahih Muslim , Book 10, Hadith 3767 (USC-MSA) ⓘ
Jabir b. Abdullah (Allah be pleased with them) reported: Allah's Apostle visited the orchard of Umm Ma'sud and said: Umm Ma'bad. he who has planted this tree, is he a Muslim or a non-Muslim? She said: Of course, he is a Muslim, whereupon he (the Holy Prophet) said: No Muslim who plants (trees) and from their fruits the human beings or the beasts or birds eat, but that would be taken as an act of charity on the Day of Resurrection.
حَدَّثَنَا أَحْمَدُ بْنُ سَعِيدِ بْنِ إِبْرَاهِيمَ، حَدَّثَنَا رَوْحُ بْنُ عُبَادَةَ، حَدَّثَنَا زَكَرِيَّاءُ بْنُ إِسْحَاقَ، أَخْبَرَنِي عَمْرُو بْنُ دِينَارٍ، أَنَّهُ سَمِعَ جَابِرَ بْنَ عَبْدِ اللَّهِ، يَقُولُ دَخَلَ النَّبِيُّ صلى الله عليه وسلم عَلَى أُمِّ مَعْبَدٍ حَائِطًا فَقَالَ " يَا أُمَّ مَعْبَدٍ مَنْ غَرَسَ هَذَا النَّخْلَ أَمُسْلِمٌ أَمْ كَافِرٌ " . فَقَالَتْ بَلْ مُسْلِمٌ . قَالَ " فَلاَ يَغْرِسُ الْمُسْلِمُ غَرْسًا فَيَأْكُلَ مِنْهُ إِنْسَانٌ وَلاَ دَابَّةٌ وَلاَ طَيْرٌ إِلاَّ كَانَ لَهُ صَدَقَةً إِلَى يَوْمِ الْقِيَامَةِ " .
also referenced under: Book 22, Hadith 10 (In-Book) & Hadith 1552 (Reference)