Sahih Muslim , Hadith 2188 ⓘ
Ibn 'Abbas reported Allah's Messenger as saying: The influence of an evil eye is a fact; if anything would precede the destiny it would be the influence of an evil eye, and when you are asked to take bath (as a cure) from the influence of an evil eye, you should take bath.
وَحَدَّثَنَا عَبْدُ اللَّهِ بْنُ عَبْدِ الرَّحْمَنِ الدَّارِمِيُّ، وَحَجَّاجُ بْنُ الشَّاعِرِ، وَأَحْمَدُ بْنُ خِرَاشٍ، قَالَ عَبْدُ اللَّهِ أَخْبَرَنَا وَقَالَ الآخَرَانِ، حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا وُهَيْبٌ، عَنِ ابْنِ، طَاوُسٍ عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْعَيْنُ حَقٌّ وَلَوْ كَانَ شَىْءٌ سَابَقَ الْقَدَرَ سَبَقَتْهُ الْعَيْنُ وَإِذَا اسْتُغْسِلْتُمْ فَاغْسِلُوا " .
also referenced under: Book 39, Hadith 56 (In-Book) & Book 26, Hadith 5427 (USC-MSA)