Hadith 2224

Anas reported Allah's Messenger (may peace be upon him) as saying: There is no transitive disease, no divination, but good omen pleases me, i. e. the good word or a good word.

Note: The majority of scholars interpret this to mean that these things in and of themselves do not transmit or cause harm through supernatural or hidden means but that Allah is ultimately in control and any fearful superstition around these is false.