Sahih al-Bukhari, Volume 8, Book 73, Hadith 193 (USC-MSA) ⓘ
Narrated Ibn `Abbas: Allah's Messenger said to Ibn Saiyad "I have hidden something for you in my mind; What is it?" He said, "Ad-Dukh." The Prophet said, "Ikhsa."
حَدَّثَنَا أَبُو الْوَلِيدِ، حَدَّثَنَا سَلْمُ بْنُ زَرِيرٍ، سَمِعْتُ أَبَا رَجَاءٍ، سَمِعْتُ ابْنَ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لاِبْنِ صَائِدٍ " قَدْ خَبَأْتُ لَكَ خَبِيئًا فَمَا هُوَ ". قَالَ الدُّخُّ. قَالَ " اخْسَأْ ".
also referenced under: Book 78, Hadith 198 (In-Book) & Hadith 6172 (DarusSalam)