Quran the only thing the prophet left

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا سُفْيَانُ، عَنْ عَبْدِ الْعَزِيزِ بْنِ رُفَيْعٍ، قَالَ دَخَلْتُ أَنَا وَشَدَّادُ بْنُ مَعْقِلٍ، عَلَى ابْنِ عَبَّاسٍ رضى الله عنهما فَقَالَ لَهُ شَدَّادُ بْنُ مَعْقِلٍ أَتَرَكَ النَّبِيُّ صلى الله عليه وسلم مِنْ شَىْءٍ قَالَ مَا تَرَكَ إِلاَّ مَا بَيْنَ الدَّفَّتَيْنِ‏.‏ قَالَ وَدَخَلْنَا عَلَى مُحَمَّدِ ابْنِ الْحَنَفِيَّةِ فَسَأَلْنَاهُ فَقَالَ مَا تَرَكَ إِلاَّ مَا بَيْنَ الدَّفَّتَيْنِ‏.‏

Narrated Abdul Aziz bin Rufai': Shaddad bin Ma'qil and I entered upon Ibn `Abbas. Shaddad bin Ma'qil asked him, "Did the Prophet (ﷺ) leave anything (besides the Qur'an)?" He replied. "He did not leave anything except what is Between the two bindings (of the Qur'an)." Then we visited Muhammad bin Al-Hanafiyya and asked him (the same question). He replied, "The Prophet (ﷺ) did not leave except what is between the bindings (of the Qur'an).

Sahih al-Bukhari 5019 https://sunnah.com/bukhari:5019

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حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا مُطَرِّفٌ، أَنَّ عَامِرًا، حَدَّثَهُمْ عَنْ أَبِي جُحَيْفَةَ، قَالَ قُلْتُ لِعَلِيٍّ‏.‏ وَحَدَّثَنَا صَدَقَةُ بْنُ الْفَضْلِ، أَخْبَرَنَا ابْنُ عُيَيْنَةَ، حَدَّثَنَا مُطَرِّفٌ، سَمِعْتُ الشَّعْبِيَّ، يُحَدِّثُ قَالَ سَمِعْتُ أَبَا جُحَيْفَةَ، قَالَ سَأَلْتُ عَلِيًّا ـ رضى الله عنه ـ هَلْ عِنْدَكُمْ شَىْءٌ مِمَّا لَيْسَ فِي الْقُرْآنِ ـ وَقَالَ ابْنُ عُيَيْنَةَ مَرَّةً مَا لَيْسَ عِنْدَ النَّاسِ ـ فَقَالَ وَالَّذِي فَلَقَ الْحَبَّةَ وَبَرَأَ النَّسَمَةَ مَا عِنْدَنَا إِلاَّ مَا فِي الْقُرْآنِ إِلاَّ فَهْمًا يُعْطَى رَجُلٌ فِي كِتَابِهِ وَمَا فِي الصَّحِيفَةِ‏.‏ قُلْتُ وَمَا فِي الصَّحِيفَةِ قَالَ الْعَقْلُ، وَفِكَاكُ الأَسِيرِ، وَأَنْ لاَ يُقْتَلَ مُسْلِمٌ بِكَافِرٍ‏.‏

Narrated Abu Juhaifa: I asked Ali "Do you have anything Divine literature besides what is in the Qur'an?" Or, as Uyaina once said, "Apart from what the people have?" Ali said, "By Him Who made the grain split (germinate) and created the soul, we have nothing except what is in the Qur'an and the ability (gift) of understanding Allah's Book which He may endow a man, with and what is written in this sheet of paper." I asked, "What is on this paper?" He replied, "The legal regulations of Diya (Blood-money) and the (ransom for) releasing of the captives, and the judgment that no Muslim should be killed in Qisas (equality in punishment) for killing a Kafir (disbeliever).

Sahih al-Bukhari 6915 https://sunnah.com/bukhari:6915