Sunan Abi Dawud 1395
سنن أبي داود#1395HasanNarrated Abdullah ibn Amr ibn al-'As: Wahb ibn Munabbih said: Abdullah ibn Amr asked the Prophet (ﷺ); In how many days should one complete the recitation of the Qur'an? He said: In forty days. He then said: In one month. He again said: In twenty days. He then said: In fifteen days. He then said: In ten days. Finally he said: In seven days
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniShadh
Muhammad Muhyi Al-Din Abdul HamidShadh
Shuaib Al ArnautHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 6:25