Umar (may Allah be pleased with him) took a vow in the pre-Islamic days to spend a night or a day in devotion near the Ka'bah (in the sacred mosque). He asked the Prophet ﷺ about it. He said: Observe i'tikaf (i.e. spend a night or a day near the Ka'bah) and fast.

أَنَّ عُمَرَ ؓ جَعَلَ عَلَيْهِ أَنْ يَعْتَكِفَ فِي الْجَاهِلِيَّةِ لَيْلَةً أَوْ يَوْمًا عِنْدَ الْكَعْبَةِ فَسَأَلَ النَّبِيَّ ﷺ فَقَالَ اعْتَكِفْ وَصُمْ

It was narrated from Ibn 'Umar, that 'Umar had vowed to spend a night in 'Itikaf during the Jahiliyyah. He asked the Messenger of Allah about that, and he ordered him to perform the 'Itikaf.

أَنَّهُ كَانَ عَلَيْهِ لَيْلَةٌ نَذَرَ فِي الْجَاهِلِيَّةِ يَعْتَكِفُهَا فَسَأَلَ رَسُولَ اللَّهِ ﷺ فَأَمَرَهُ أَنْ يَعْتَكِفَ

"Umar had made a vow to spend a night in 'Itikaf in Al-Masjid Al-Haram. He asked the Messenger of Allah about that, and he ordered him to perform the 'Itikaf."

كَانَ عَلَى عُمَرَ نَذْرٌ فِي اعْتِكَافِ لَيْلَةٍ فِي الْمَسْجِدِ الْحَرَامِ فَسَأَلَ رَسُولَ اللَّهِ ﷺ عَنْ ذَلِكَ فَأَمَرَهُ أَنْ يَعْتَكِفَ

It was narrated from Ibn 'Umar that 'Umar had vowed -during the Jahiliyyah- to spend a day in 'Itikaf. He asked the Messenger of Allah about that, and he commanded him to perform the 'Itikaf.

أَنَّ عُمَرَ كَانَ جَعَلَ عَلَيْهِ يَوْمًا يَعْتَكِفُهُ فِي الْجَاهِلِيَّةِ فَسَأَلَ رَسُولَ اللَّهِ ﷺ عَنْ ذَلِكَ فَأَمَرَهُ أَنْ يَعْتَكِفَهُ

It was narrated from ‘Umar that he had vowed during the days of Ignorance to spend one night in I’tikaf. He asked the Prophet ﷺ about it, so he commanded him to spend it in I’tikaf.

أَنَّهُ كَانَ عَلَيْهِ نَذْرُ لَيْلَةٍ فِي الْجَاهِلِيَّةِ يَعْتَكِفُهَا فَسَأَلَ النَّبِيَّ ﷺ فَأَمَرَهُ أَنْ يَعْتَكِفَ

It was narrated from Ibn 'Umar that 'Umar had vowed -during the Jahiliyyah- to spend a day in 'Itikaf. He asked the Messenger of Allah about that, and he commanded him to perform the 'Itikaf. (Using translation from Nasāʾī 3822)

أَنَّ عُمَرَ كَانَ قَدْ جَعَلَ عَلَيْهِ يَوْمًا يَعْتَكِفُهُ فِي الْجَاهِلِيَّةِ فَسَأَلَ رَسُولَ اللهِ ﷺ عَنْ ذَلِكَ فَأَمَرَهُ أَنْ يَعْتَكِفَ

It was narrated from Ibn 'Umar that 'Umar had vowed -during the Jahiliyyah- to spend a day in 'Itikaf. He asked the Messenger of Allah about that, and he commanded him to perform the 'Itikaf. (Using translation from Nasāʾī 3822)

أَنَّ عُمَرَ كَانَ قَدْ جَعَلَ عَلَيْهِ يَوْمًا يَعْتَكِفُهُ فِي الْجَاهِلِيَّةِ فَسَأَلَ رَسُولَ اللهِ ﷺ عَنْ ذَلِكَ «فَأَمَرَهُ أَنْ يَعْتَكِفَ»

"Umar had made a vow to spend a night in 'Itikaf in Al-Masjid Al-Haram. He asked the Messenger of Allah about that, and he ordered him to perform the 'Itikaf." (Using translation from Nasāʾī 3821)

كَانَ عُمَرُ نَذَرَ فِي الْجَاهِلِيَّةِ اعْتِكَافِ لَيْلَةٍ فِي الْمَسْجِدِ الْحَرَامِ «فَسَأَلَ رَسُولَ اللهِ ﷺ عَنْ ذَلِكَ فَأَمَرَهُ أَنْ يَعْتَكِفَ»

It was narrated from ‘Umar that he had vowed during the days of Ignorance to spend one night in I’tikaf. He asked the Prophet ﷺ about it, so he commanded him to spend it in I’tikaf. (Using translation from Ibn Mājah 1772)

«أَنَّهُ كَانَ عَلَيْهِ لَيْلَةُ نَذْرٍ فِي الْجَاهِلِيَّةِ يَعْتَكِفُهَا فَسَأَلَ رَسُولَ اللهِ ﷺ فَأَمَرَهُ أَنْ يَعْتَكِفَ»

It was narrated from ‘Umar that he had vowed during the days of Ignorance to spend one night in I’tikaf. He asked the Prophet ﷺ about it, so he commanded him to spend it in I’tikaf. (Using translation from Ibn Mājah 1772)

أَنَّهُ كَانَ عَلَيْهِ لَيْلَةٌ نَذْرٌ فِي الْجَاهِلِيَّةِ يَعْتَكِفُهَا فَسَأَلَ رَسُولَ اللهِ ﷺ «فَأَمَرَهُ أَنْ يَعْتَكِفَ»

It was narrated from Ibn 'Umar that 'Umar had vowed -during the Jahiliyyah- to spend a day in 'Itikaf. He asked the Messenger of Allah about that, and he commanded him to perform the 'Itikaf. (Using translation from Nasāʾī 3822)

أَنَّ عُمَرَ كَانَ قَدْ جَعَلَ عَلَيْهِ يَوْمًا يَعْتَكِفُهُ فِي الْجَاهِلِيَّةِ فَسَأَلَ رَسُولَ اللهِ ﷺ عَنْ ذَلِكَ «فَأَمَرَهُ أَنْ يَعْتَكِفَ»