Quran is Sufficient

When the prophet offered to write something for his companions before he died that he stated would cause them not to go astray, the response was that they already had the Quran and the Quran was sufficient for them.

حَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنِي ابْنُ وَهْبٍ، قَالَ أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ لَمَّا اشْتَدَّ بِالنَّبِيِّ صلى الله عليه وسلم وَجَعُهُ قَالَ ‏"‏ ائْتُونِي بِكِتَابٍ أَكْتُبُ لَكُمْ كِتَابًا لاَ تَضِلُّوا بَعْدَهُ ‏"‏‏.‏ قَالَ عُمَرُ إِنَّ النَّبِيَّ صلى الله عليه وسلم غَلَبَهُ الْوَجَعُ وَعِنْدَنَا كِتَابُ اللَّهِ حَسْبُنَا فَاخْتَلَفُوا وَكَثُرَ اللَّغَطُ‏.‏ قَالَ ‏"‏ قُومُوا عَنِّي، وَلاَ يَنْبَغِي عِنْدِي التَّنَازُعُ ‏"‏‏.‏ فَخَرَجَ ابْنُ عَبَّاسٍ يَقُولُ إِنَّ الرَّزِيَّةَ كُلَّ الرَّزِيَّةِ مَا حَالَ بَيْنَ رَسُولِ اللَّهِ صلى الله عليه وسلم وَبَيْنَ كِتَابِهِ‏.‏

Narrated 'Ubaidullah bin’Abdullah: Ibn’Abbas said, "When the ailment of the Prophet (ﷺ) became worse, he said, 'Bring for me (writing) paper and I will write for you a statement after which you will not go astray.' But’Umar said, 'The Prophet is seriously ill, and we have got Allah's Book with us and that is sufficient for us.' But the companions of the Prophet (ﷺ) differed about this and there was a hue and cry. On that the Prophet (ﷺ) said to them, 'Go away (and leave me alone). It is not right that you should quarrel in front of me." Ibn’Abbas came out saying, "It was most unfortunate (a great disaster) that Allah's Messenger (ﷺ) was prevented from writing that statement for them because of their disagreement and noise.

Sahih al-Bukhari 114 https://sunnah.com/bukhari:114