حَدَّثَنَا أَبُو طَالِبٍ الْحَافِظُ ، ثنا هِلالُ بْنُ الْعَلاءِ ، ثنا أبِي ، ثنا الْوَلِيدُ بْنُ مُسْلِمٍ ، عَنْ سَعِيدِ بْنِ بَشِيرٍ ، عَنْ عُبَيْدِ اللَّهِ بْنِ عُمَرَ ، عَنْ نَافِعٍ ، عَنِ ابْنِ عُمَرَ ، أَنَّ عُمَرَ نَذَرَ أَنْ يَعْتَكِفَ فِي الشِّرْكِ وَيَصُومَ ، فَسَأَلَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بَعْدَ إِسْلامِهِ ، فَقَالَ : " أَوْفِ بِنَذْرِكَ " . وَهَذَا إِسْنَادٌ حَسَنٌ ، تَفَرَّدَ بِهَذَا اللَّفْظِ سَعِيدُ بْنُ بَشِيرٍ ، عَنْ عُبَيْدِ اللَّهِ.
Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: Sayyiduna Umar (may Allah be pleased with him) had made a vow during the time of ignorance (before accepting Islam) that he would perform i'tikaf and fast. After accepting Islam, he asked the Prophet Muhammad (peace and blessings be upon him) about this matter, so the Prophet (peace and blessings be upon him) said: "Fulfill your vow." Its chain is Hasan. Sa'id bin Bishr is the only narrator who has transmitted it in these words.