Reliance on the Book and the Sunnah - Section 3 Mishkat al-Masabih 196
Arabic hadith text
وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ أَحَادِيثَنَا يَنْسَخُ بَعْضهَا بَعْضًا كنسخ الْقُرْآن»
Translation
Ibn ‘Umar reported God’s messenger as saying, “Some of my traditions abrogate others just as some parts of the Qur’an abrogate others.”Daraqutni transmitted it.