Ja'far bin Abi Thawr says: My grandfather, Sayyiduna Jabir bin Samurah (may Allah be pleased with him), told me; he said: I was sitting with the Prophet (peace and blessings be upon him) when a man came and said: "O Messenger of Allah, should we perform ablution after eating goat meat?" He said: "If you wish, perform ablution, and if you wish, do not." He said: "Should I perform ablution after eating camel meat?" He said: "Yes." He said: "Should I pray in the resting places of camels?" He said: "No." He said: "Then should I pray in the pens of sheep and goats?" He said: "Yes."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1854