Musannaf Ibn Abi Shaybah 22507 — Those who disliked a man making

Amr bin Shu'ayb said: I asked Sa'id bin al-Musayyib (may Allah have mercy on him): May I sell the fruit of my land and set aside some part of it? He said: Do not make an exception; if you must, set aside a specific tree, but do not free even that from the charity (sadaqah).