Sayyiduna Abu Humayd Sa‘idi (may Allah be pleased with him) narrates: I brought milk to the service of the Prophet (peace and blessings be upon him) which was not covered. At that time, you were at the place of "Naqi‘". You said: Why did you not cover it? Even if you had placed a stick over it. Sayyiduna Abu Humayd (may Allah be pleased with him) narrates: We were commanded regarding vessels that at night their mouths should be closed, and regarding doors, we were commanded that at night they should be closed.