Sahih al-Bukhari 3765

Arabic

حَدَّثَنَا ابْنُ أَبِي مَرْيَمَ، حَدَّثَنَا نَافِعُ بْنُ عُمَرَ، حَدَّثَنِي ابْنُ أَبِي مُلَيْكَةَ، قِيلَ لاِبْنِ عَبَّاسٍ هَلْ لَكَ فِي أَمِيرِ الْمُؤْمِنِينَ مُعَاوِيَةَ، فَإِنَّهُ مَا أَوْتَرَ إِلاَّ بِوَاحِدَةٍ‏.‏ قَالَ إِنَّهُ فَقِيهٌ‏.‏

English translation

Narrated Ibn Abi Mulaika:Somebody said to Ibn `Abbas, "Can you speak to the chief of the believers Mu`awiyah, as he does not pray except one rak`a as witr?" Ibn `Abbas replied, "He is a Faqih (i.e. a learned man who can give religious verdicts)

Reference: Sahih al-Bukhari 3765, Book of Companions of the Prophet. English translation by Dr. Muhammad Muhsin Khan.