The Messenger of Allah ﷺ said, "One whose animals are sick should not bring them to water alongside one whose animals are healthy."
حدثنا عفان قال حدثنا عبد الواحد قال حدثنا معمر عن الزهري عن أبي سلمة
قال رسول الله ﷺ لا يورد ممرض على مصح
No references are available.
Its isnad is sahih. Muslim narrated it, 4/1743, no. 2221, in the Book of Greetings, "There is no contagion and no bad omen."