حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللَّهِ حَدَّثَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ عَنْ عُمَرَ رَضِيَ اللَّهُ عَنْهُ أَنَّهُ قَالَ يَا رَسُولَ اللَّهِ إِنِّي نَذَرْتُ فِي الْجَاهِلِيَّةِ أَنْ أَعْتَكِفَ فِي الْمَسْجِدِ الْحَرَامِ لَيْلَةً فَقَالَ لَهُ فَأَوْفِ بِنَذْرِكَ
مسند امام احمد بن حنبل · Hadith 255
It was narrated from 'Umar that he said: O Messenger of Allah, I vowed during the Jahiliyyah to observe i'tikaf for one night in al-Masjid al-Haram. He said to him: "Fulfil your vow."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020