Sunan Abi Dawud 1388
سنن أبي داود#1388SahihNarrated 'Abd Allah b. 'Amr: The Prophet (ﷺ) as saying to him: Complete the recitation of the Qu'ran in one month. He said: I have more strength. He (the Prophet) said: Complete the recitation in twenty days. He again said: I have more energy. He said : Recite in fifteen days. He again said: I have more energy. He said: Recite in ten days. He again said: I have more energy. He said: Recite in seven days, do not add to it. Abu Dawud said: The tradition narrated by Muslim is more perfect
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (5054) Sahih Muslim (1159)
In-book reference: 6:18