My father narrated that he heard the Messenger of Allah ﷺ saying: "There is nothing to Al-Ham, and the eye is real."  

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ لاَ شَىْءَ فِي الْهَامِ وَالْعَيْنُ حَقٌّ  

"If there was anything that could overcome the Decree then the (evil) eye would overcome it, and when you are requested to wash (due to it) then wash."  

قَالَ رَسُولُ اللَّهِ ﷺ لَوْ كَانَ شَيْءٌ سَابَقَ الْقَدَرَ لَسَبَقَتْهُ الْعَيْنُ وَإِذَا اسْتُغْسِلْتُمْ فَاغْسِلُوا