It is narrated from Hazrat Dhirar bin Azwar (may Allah be pleased with him) that once my family sent me to the Noble Prophet (peace and blessings be upon him) with a milking she-camel. I presented myself, and the Noble Prophet (peace and blessings be upon him) instructed me to milk her. Then the Noble Prophet (peace and blessings be upon him) said: Leave enough milk in her udders so that it can be obtained again.
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 18905
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة حال يعقوب بن بحير