It is narrated from Sayyiduna Mu'awiyah bin al-Hakam al-Sulami (may Allah be pleased with him) that he asked the Messenger of Allah (peace and blessings be upon him) about evil omens, and he (peace and blessings be upon him) said: "That is something you feel within yourselves; let it not harm you."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16983