Musnad Abu Ya'la al-Mawsili 129:15

Abu Bakr narrated to us, Abu Khalid narrated to us, from Humayd, from Anas, who said: Abu Talhah came to the Prophet, may Allah bless him and grant him peace, and said: "I have made my garden for Allah, and if I were able to conceal it, I would not have made it public." The Prophet, may Allah bless him and grant him peace, said: "Place it among the poor of your family."