Ibn Abi Najih narrates from Mujahid (may Allah have mercy on him) regarding this saying of Allah Almighty, "So eat of them and feed the distressed poor" [Surah al-Hajj: 28]: Al-ba'is is "the one who, when he asks, asks with his hand"; al-qani' is "the one among your neighbours who covets the meat of your sacrifice"; and al-mu'tarr is "the one who comes to you himself but does not put his need before you."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19230