كتاب 2
2  
Book 2
(2)
Chapter 2
(2)
باب 2
Muwatta Malik 58
Yahya related to me from Malik from Hisham ibn Urwa from his father that the Messenger of Allah, may Allah bless him and grant him peace, was asked about cleaning after excretion. He replied, "Are any of you unable to find three stones?"
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم سُئِلَ عَنْ الاِسْتِطَابَةِ فَقَالَ ‏ "‏ أَوَلاَ يَجِدُ أَحَدُكُمْ ثَلاَثَةَ أَحْجَارٍ ‏"‏ ‏.‏
Reference : Muwatta Malik 58
In-book reference : Book 2, Hadith 34236
USC-MSA web (English) reference : Book 7, Hadith 58
  (deprecated numbering scheme)