It is narrated from Hazrat Usaid (may Allah be pleased with him) that someone asked the Holy Prophet (peace and blessings be upon him) about the ruling of drinking camel's milk. The Holy Prophet (peace and blessings be upon him) said: After drinking it, perform ablution. Then he asked about the ruling of goat's milk, so he said: After drinking it, there is no need to perform ablution.
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 19097
Hadith Gradingحکم دارالسلام:إسناده ضعيف لضعف حجاج بن أرطاة، وقد اختلف عليه فيه، وعبدالرحمن بن أبى ليلى لم يسمع من أسيد بن حضير