The Messenger of Allah (ﷺ) said to me: Recite the Qur'an in one month. I said: I have (more) energy. He said: Recite it in three days

Abu 'Ali said: I heard Abu Dawud say: I heard Ahmad b. Hanbal say: The narrator 'Isa b. Shadhan is a sane person.
Sunan Abi Dawud Book 6, Hadith 21
← Previous Hadith Yazid ibn Abdullah said that Abdullah ibn Amr asked the Prophet (ﷺ): In how many days should I complete the recitation of the whole Qur'an, Messenger of Allah?

He replied: In one month.

He said: I am more energetic to complete it in a period less than this. He kept on repeating these words and lessening the period until he said: Complete its recitation in seven days.

He again said: I am more energetic to complete it in a period less than this.

The Prophet (ﷺ) said: He who finishes the recitation of the Qur'an in less than three days does not understand it.

Sunan Abi Dawud Book 6, Hadith 20 Next Hadith → Nafi' b. Jubair asked me: In how many days do you recite the Qur'an ? I said: I have not fixed any part from it for daily round. Nafi' said to me: Do not say: I do not fix any part of it for daily round, for the Messenger of Allah (ﷺ) said: I recited a part of the Qur'an.

The narrator Ibn al-Had said: I think I have transmitted this tradition from al-Mughirah b. Shu'bah.

Sunan Abi Dawud Book 6, Hadith 22