Mishkat al-Masabih #1758

Samura b. Jundub reported God's messenger as saying, “Acts of begging are lacerations with which a man disfigures his face, so he who wishes may preserve his self-respect and he who wishes may do otherwise; but this does not apply to one who asks from a ruler, or in a situation which makes it necessary.” Abu Dawud, Tirmidhi and Nasa’i transmitted it.