It wasnarrated from 'Uthman bin 'Abdullah bin Aws that hisgrandfatherAws bin Hudhaifah said:
"We came to the Messenger of Allah(ﷺ) inthe delegation of Thaqif. The allies of Quraish stayed at thehouseof Mughirah bin Shu'bah, and the Messenger of Allah (ﷺ) campedBani Malik in a tent belonging to him. He used to come to us everynight after the 'Isha' and speak to us standing on his two feet,untilhe started to shift his weight from one foot to the other. Mostofwhat he told us was what he had suffered from his people, theQuraish.He said: '(The two sides) were not equal. We were weak andoppressedand humiliated, and when we went out to Al-Madinah, theoutcome of thebattles between us varied; sometimes we would defeatthem andsometimes they would defeat us.' One night he was laterthan heusually was, and I said: 'O Messenger of Allah, you havecome to uslate tonight.' He said: 'It occurred to me that I hadnot read mydaily portion of Qur'an and I did not want to come outuntil I hadcompleted it.'" Aws said: "I asked the Companionsof the Messenger ofAllah (ﷺ): 'How did you used to divide up theQur'an?' They said: 'Athird, a fifth, a seventh, a ninth, aneleventh, a thirteenth, andHizbul-Mufassal.'"
English reference: Vol. 1, Book 5, Hadith 1345
Arabic reference: Book 5, Hadith 1406