Sahih al-Bukhari 5022
Narrated Talha:
I asked `Abdullah bin Abi `Aufa, "Did the Prophet (ﷺ) make a will (to appoint his successor or bequeath 
wealth)?" He replied, "No." I said, "How is it prescribed then for the people to make wills, and they 
are ordered to do so while the Prophet (ﷺ) did not make any will?" He said, "He made a will wherein he 
recommended Allah's Book."
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، حَدَّثَنَا مَالِكُ بْنُ مِغْوَلٍ، حَدَّثَنَا طَلْحَةُ، قَالَ سَأَلْتُ عَبْدَ اللَّهِ بْنَ أَبِي أَوْفَى أَوْصَى النَّبِيُّ صلى الله عليه وسلم فَقَالَ لاَ‏.‏ فَقُلْتُ كَيْفَ كُتِبَ عَلَى النَّاسِ الْوَصِيَّةُ، أُمِرُوا بِهَا وَلَمْ يُوصِ قَالَ أَوْصَى بِكِتَابِ اللَّهِ‏.‏