The sole source for Saint Onuphrios’ life is by Saint Paphnutios…

Now suddenly I looked and I saw a man in the distance; he was very terrifying because his hair was spread out over his body like a leopard’s. Indeed, he was naked, and leaves covered his male member. When he came up close to me I was afraid and I climbed up on a ledge of the mountain, thinking that perhaps it was a wild ass. . . . He raised his eyes to the mountain ledge; he saw me and called, ‘Come down to me, holy man. I too am a man of the desert, like yourself. I live in this desert on account of my sins.’ He said to me, ‘You too are a friend of God’. So I sat down in front of him and I asked him to tell me his name.

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