Language:
كتاب الوصايا
55  
Wills and Testaments (Wasaayaa)
(5)
Chapter: If a patient gives an evident clear sign by nodding
(5)
باب إِذَا أَوْمَأَ الْمَرِيضُ بِرَأْسِهِ إِشَارَةً بَيِّنَةً جَازَتْ
Sahih al-Bukhari 2746

Narrated Anas:

A Jew crushed the head of a girl between two stones. She was asked, "Who has done so to you, soand- so? So-and-so?" Till the name of the Jew was mentioned, whereupon she nodded (in agreement). So the Jew was brought and was questioned till he confessed. The Prophet (ﷺ) then ordered that his head be crushed with stones.

حَدَّثَنَا حَسَّانُ بْنُ أَبِي عَبَّادٍ، حَدَّثَنَا هَمَّامٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ ـ رضى الله عنه ـ أَنَّ يَهُوِدِيًّا، رَضَّ رَأْسَ جَارِيَةٍ بَيْنَ حَجَرَيْنِ، فَقِيلَ لَهَا مَنْ فَعَلَ بِكِ، أَفُلاَنٌ أَوْ فُلاَنٌ حَتَّى سُمِّيَ الْيَهُودِيُّ، فَأَوْمَأَتْ بِرَأْسِهَا، فَجِيءَ بِهِ، فَلَمْ يَزَلْ حَتَّى اعْتَرَفَ، فَأَمَرَ النَّبِيُّ صلى الله عليه وسلم فَرُضَّ رَأْسُهُ بِالْحِجَارَةِ‏.‏
Reference : Sahih al-Bukhari 2746
In-book reference : Book 55, Hadith 9
USC-MSA web (English) reference : Vol. 4, Book 51, Hadith 9
  (deprecated numbering scheme)