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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
bayhaqi:8711 – Abū ʿAbdullāh al-Ḥāfiẓ > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > al-Ḥasan b. ʿAlī b. ʿAffān > ʿAbdullāh b. Numayr > ʿUbaydullāh b. ʿUmar > Nāfiʿ > Ibn ʿUmar al-Ḥaj Ashhur Mmaʿlūmāt al-Bqrh 197 > Shawwāl And Dhū

[Machine] Shawwal, Dhul-Qa'dah, and ten days from Dhul-Hijjah are mentioned in this regarding a narration from Ibn Umar and Urwah ibn Zubayr, from Umar, as being Mursal.  

البيهقي:٨٧١١ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا الْحَسَنُ بْنُ عَلِيِّ بْنِ عَفَّانَ ثنا عَبْدُ اللهِ بْنُ نُمَيْرٍ عَنْ عُبَيْدِ اللهِ بْنِ عُمَرَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ ؓ {الْحَجُّ أَشْهُرٌ مَّعْلُومَاتٌ} [البقرة 197] قَالَ

شَوَّالٌ وَذُو الْقَعْدَةِ وَعَشْرٌ مِنْ ذِي الْحِجَّةِ وَرُوِيَ فِي ذَلِكَ عَنِ ابْنِ عُمَرَ عَنْ عُمَرَ بْنِ الْخَطَّابِ ؓ وَعَنْ عُرْوَةَ بْنِ الزُّبَيْرِ عَنْ عُمَرَ ؓ مُرْسَلًا