Chapter: The evidence that his (peace and blessings be upon him) saying, "The best charity is that which is given in a state of self-sufficiency (wealth)," and his saying when he was asked about the most excellent charity, "A poor person giving something from the effort of his labour," (the difference between these two hadiths) is in fact due to the difference in people's conditions with regard to patience upon hardship and starvation and contentment with the barest sufficiency. And success is only from Allah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / Q7774