Bukhari

Hadith Commentary:
Aisha (radi Allahu anha) objected to Abu Hurairah’s (radi Allahu anhu) rapid speech and hastiness of tongue, indicating that the Messenger of Allah (sallallahu alayhi wa sallam) used to speak very slowly and deliberately, to the extent that a listener could count his words.
Thus, it is implied that one should also speak and recite the Qur’an and Hadith in a slow and deliberate manner.
However, this restriction cannot be applied in a large gathering or during a sermon, because it is established from authentic ahadith that when the Messenger of Allah (sallallahu alayhi wa sallam) would speak about tawhid (the oneness of Allah) or warn of Allah’s punishment, his voice would become very loud and his anger would intensify, and so on.
To conclude from this that Aisha (radi Allahu anha) objected to Abu Hurairah’s (radi Allahu anhu) narration of hadith is absolutely false, and falls under “interpreting a statement in a way that the speaker himself would not approve of” (tawjih al-qawl bima la yardha bihi al-qa’il), meaning to interpret someone’s statement in a manner that was never intended by the speaker.

Hadith Commentary:
The person whom Aisha radi Allahu anha criticized was Abu Hurairah radi Allahu anhu; thus, in the narration of Isma‘ili, it is explicitly stated that Aisha radi Allahu anha said:
“Are you not amazed at Abu Hurairah’s radi Allahu anhu manner of speaking?”
(Fath al-Bari: 6/707)
Aisha radi Allahu anha objected to Abu Hurairah radi Allahu anhu’s forcefulness in narrating hadith, but as a result of the supplication of the Messenger of Allah sallallahu alayhi wa sallam, Abu Hurairah radi Allahu anhu’s memory was extremely strong, and for this reason, he would narrate hadith quickly, even though the Messenger of Allah sallallahu alayhi wa sallam would speak very slowly so that the listener could count his words. However, in a large gathering or while delivering a sermon, this restriction cannot be applied, because it is established from authentic hadith that when the Messenger of Allah sallallahu alayhi wa sallam would address (the people), his voice would become loud.
Aisha radi Allahu anha did not object to Abu Hurairah radi Allahu anhu’s narration of hadith itself.

Hadith Commentary:
Vocabulary of the Hadith:
Lam yakun yasrud al-hadith:
He (sallallahu alayhi wa sallam) would not speak continuously,
without pause,
he would not converse in an uninterrupted manner,
that is, he would speak slowly and with pauses,
so that it would be easy for the listener to hear and understand,
for when one speaks quickly, it becomes difficult to listen and comprehend.

Benefits and Issues:
Benefit: Speaking rapidly is generally not praiseworthy in any way.
Especially for a caller (da‘i), preacher (khatib), and teacher (mudarris), having composure and deliberation in speech is a very excellent quality.

Benefits and Issues:
Speaking hastily and with undue speed has always been considered blameworthy among dignified people.
And even an orator who speaks excessively fast is not regarded as a successful orator.