Muwatta Malik 57
موطأ مالك#57Sahihحَدَّثَنِي 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 " .
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?
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Salim al-HilaliSahih Lighairihi
In-book reference: 2:26