Mujahid narrates that Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) sent a sacrificial animal (badanah) with a man. He asked: What shall I do with it? He said: "You and your companions eat one third, send one third to our Bedouin folk, and give one third in charity."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9149