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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:5166 – Zakariyyā b. Yaḥyá > ʿAbd al-Aʿlá b. Ḥammād > Muʿtamir b. Sulaymān > ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > Saʿīd b. al-Musayyib

"'Umar, may Allah be pleased with him, banished Rabi'ah bin Umaiyah to Khaibar for drinking Khamr, and he went and joined Heraclius and became a Christian. 'Umar, may Allah be pleased with him, said: 'I will never expel any Muslim after this.'" (Using translation from Nasāʾī 5676)  

الكبرى للنسائي:٥١٦٦ – أَخْبَرَنَا زَكَرِيَّا بْنُ يَحْيَى قَالَ حَدَّثَنَا عَبْدُ الْأَعْلَى بْنُ حَمَّادٍ قَالَ حَدَّثَنَا مُعْتَمِرُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنِي عَبْدُ الرَّزَّاقِ عَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ عَنْ سَعِيدِ بْنِ الْمُسَيِّبِ قَالَ غَرَّبَ عُمَرُ رَبِيعَةَ بْنَ أُمَيَّةَ فِي الْخَمْرِ إِلَى خَيْبَرَ فَلَحِقَ بِهِرَقْلَ فَتَنَصَّرَ فَقَالَ

عُمَرُ «لَا أُغَرِّبُ بَعْدَهُ مُسْلِمًا»  

See similar narrations below:

Collected by Nasāʾī
nasai:5676 – Zakariyyā b. Yaḥyá > ʿAbd al-Aʿlá b. Ḥammād > Muʿtamir b. Sulaymān > ʿAbd al-Razzāq > Maʿmar > al-Zuhrī > Saʿīd b. al-Musayyab > Gharrab

"'Umar, may Allah be pleased with him, banished Rabi'ah bin Umaiyah to Khaibar for drinking Khamr, and he went and joined Heraclius and became a Christian. 'Umar, may Allah be pleased with him, said: 'I will never expel any Muslim after this.'"  

النسائي:٥٦٧٦ – أَخْبَرَنَا زَكَرِيَّا بْنُ يَحْيَى قَالَ حَدَّثَنَا عَبْدُ الأَعْلَى بْنُ حَمَّادٍ قَالَ حَدَّثَنَا مُعْتَمِرُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنِي عَبْدُ الرَّزَّاقِ عَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ قَالَ غَرَّبَ عُمَرُ ؓ رَبِيعَةَ بْنَ أُمَيَّةَ فِي الْخَمْرِ إِلَى خَيْبَرَ فَلَحِقَ بِهِرَقْلَ فَتَنَصَّرَ فَقَالَ

عُمَرُ ؓ لاَ أُغَرِّبُ بَعْدَهُ مُسْلِمًا