It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Any Muslim who plants a field or plants a tree, and from it a bird, a human, or a wild animal eats, it is regarded as charity for him."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13554
Hadith Gradingحکم دارالسلام:إسناده صحيح، وانظر ما قبله