Hazrat Nafi' narrates that when the Umrah of the Messenger of Allah (peace be upon him) from the place of Ji'ranah was mentioned in the presence of Sayyiduna Ibn Umar (may Allah be pleased with them both), he said that the Prophet did not perform any Umrah from Ji'ranah. He said that Sayyiduna Umar (may Allah be pleased with him) had made a vow in the days of ignorance to observe i'tikaf for one night, so he asked the Messenger of Allah (peace be upon him) about fulfilling this vow. The Prophet ordered him to fulfill this vow, so he entered the mosque that night. Then the complete hadith was narrated. Imam Abu Bakr (may Allah have mercy on him) says that I have already mentioned in the Book of Jihad the time of the Prophet's (peace be upon him) return to Makkah after the victory of Hunayn, and Sayyiduna Umar (may Allah be pleased with him) observed that night's i'tikaf after the Prophet's (peace be upon him) return and after he (the Prophet) had given Sayyiduna Umar (may Allah be pleased with him) a slave girl from among the captives of Hunayn.

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that Sayyiduna Umar (may Allah be pleased with him) had made a vow in the days of ignorance to observe i'tikaf for one night. So he asked the Prophet Muhammad (peace and blessings be upon him) about this, and the Prophet (peace and blessings be upon him) ordered him to observe i'tikaf. And the Noble Prophet (peace and blessings be upon him) had given him a slave girl from among the captives of Hunayn. So while he was sitting in i'tikaf in Masjid al-Haram, people entered Masjid al-Haram saying "Allahu Akbar." Sayyiduna Umar (may Allah be pleased with him) asked, "What is this?" They replied, "The Messenger of Allah (peace and blessings be upon him) has freed the captives of Hunayn (and people are raising the slogan of takbir out of happiness)." Sayyiduna Umar (may Allah be pleased with him) said, "Then free that slave girl as well." One of the narrators of this narration of Sayyiduna Umar (may Allah be pleased with him), from Nafi', from Sayyiduna Ibn Umar (may Allah be pleased with them both), has stated these words: Sayyiduna Umar (may Allah be pleased with him) said, "Indeed, I had made a vow to observe i'tikaf for one day." If these words are established, then it will be of the same type which I have already mentioned, that the Arabs sometimes say 'day' and mean the day along with the night, and sometimes say 'night' and mean the night along with the day, and the evidence for this issue has already been established from the Book of Allah.