"Never neglect to give something away every day, even if a small amount, and do this early, for hardships do not corss [the protective barrier of] charity. Never disappoint a beggar who stands at your door; give him even as little as a date or less, for he is a gift from God to you. If you find nothing to give then send him away graciously with kind words and a promise.
When you give a needy person something, smile at him and be aware that it is you who are indebted to him, for he accepts a little from you for which you receive a reward worth more than the whole world. It has been said that a single morsel of food may bring a reward from God greater than Mount Uhud.
Do not let the fear of poverty prevent you from giving charity, for it is the abandonment of charity which brings on poverty. Charity on the contrary attracts wealth. If the pursuer of the world gave much charity it would return to him multiplied."
Imam Abdallah ibn Alawi al-Haddad – The Book of Assistance, from Chapter on Zakat (p. 69).