Narrated 'Abdullah bin 'Amr :"I said: 'O Messenger of Allah! In how much time may I recite the Qur'an?' He said: 'Complete it in one month.' I said: 'I am able to do more than that.' He said: 'Then complete it in twenty (days).' I said: 'I am able to do more than that.' He said: 'Then finish it in fifteen (days).' I said: 'I am able to do more than that.' He said: 'Finish it in ten (days).' I said: 'I am able to do more than that.' He said: 'Finish it in five (days).' I said: 'I am able to do more than that.'" He ('Abdullah bin 'Amr) said: "But he did not permit me

English translation · Jami' at-Tirmidhi