Abu Dawud

Benefits and Issues:
Benefit: This narration is weak in its chain of transmission.
However, there is also an authentic (sahih) hadith,
in which the Noble Prophet (sallallahu alayhi wa sallam) said,
"Do not write anything from me except the Qur'an.
And whoever has written anything from me other than the Qur'an,
let him erase it.
And narrate hadith from me,
there is no harm in that."
(Sahih Muslim, Kitab al-Zuhd, Chapter: Affirmation in Hadith and the Ruling on Writing Knowledge, Hadith: 3004) In this hadith, writing the hadith of the Messenger (sallallahu alayhi wa sallam) was prohibited.
Whereas from other narrations, it is established that the noble Companions (radi Allahu anhum ajma'in) did write down hadith.
And there is even a command from the Prophet (sallallahu alayhi wa sallam) himself to write hadith.
The scholars have reconciled between these (narrations) as follows:
That those Companions (radi Allahu anhum ajma'in) who had strong memorization and retention,
(and this quality was common among the Arabs), to them the Prophet (sallallahu alayhi wa sallam) forbade writing hadith,
so that they would not rely solely on writing,
and would not become neglectful of memorization and retention.
And the permission and command to write was given to those whose memorization was weak.
Another explanation is that, in the beginning, writing hadith was prohibited so that it would not become mixed with the Qur'an.
And when the Companions became well-acquainted with the style of the Qur'an and there was no longer any risk of confusion, then permission to write hadith was also granted.
A third reconciliation is that the prohibition meant that hadith should not be written on the same page as the Qur'an, so that the reader would not become confused.
(Sharh Nawawi) In any case, to deduce from the hadith of prohibition that there was no effort made to preserve hadith,
or that it was actually prevented,
is completely incorrect.
If that had been the purpose, then why would the Prophet (sallallahu alayhi wa sallam) in the same hadith permit narrating hadith? Which is not possible without memorization and retention. Similarly, why would the Noble Prophet (sallallahu alayhi wa sallam) make supplication for good for the one who memorized the hadith of the Messenger (sallallahu alayhi wa sallam) well and conveyed it to others? In any case, it is an established fact that during the blessed life of the Prophet (sallallahu alayhi wa sallam), hadith were committed to writing.