Musannaf Ibn Abi Shaybah 27197 — Reports on the prohibition

Abdullah bin Bakr said that Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) said: If I were to see a man suckling directly from a goat on the road and then mocked him, I would fear that death would not come to me until I too suckled directly from a goat.