Sayyiduna Jabir (may Allah be pleased with him) relates that Sayyidah Umm Mubashshir (may Allah be pleased with her), who was the wife of Zayd bin Harithah (may Allah be pleased with him), told me: the Messenger of Allah (peace and blessings be upon him) came to me while I was in a date-palm orchard of mine and said: "Is this yours?" I said: "Yes." He (peace and blessings be upon him) said: "Who planted it, a Muslim or a disbeliever?" I said: "A Muslim." He (peace and blessings be upon him) said: "There is no Muslim who plants a tree or sows a crop, and then a bird, a human, a beast of prey or anything else eats from it, except that it is charity for him."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21726