It is narrated from Sayyidah Hawwa (may Allah be pleased with her), the grandmother of Ibn Bujayd, that the Messenger of Allah (peace and blessings be upon him) said: "Do not turn the beggar away empty-handed, even if it is only with a burnt hoof."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20925