Spend (in charity), and do not keep account, lest Allah keep account of you, and do not hoard, lest Allah hoard from you

The Prophet (may Allah's peace and blessings be upon him) said to Asmā' bint Abu Bakr As-Siddīq (may Allah be pleased with her): "Do not hoard and withhold what you have, preventing others from receiving what is in your hands, lest your provision be cut off from you." He also ordered her to spend seeking the pleasure of Allah, the Exalted, and not to count and calculate the accounts out of fear of her provision being cut off, thereby causing her to stop her spending.

This is the meaning of his statement: "Lest Allah keep account of you." And do not prevent the surplus favors of Allah from reaching the poor and needy, lest Allah prevent His favors from reaching you and block them from you.