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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
tabarani:9530 – Isḥāq b. Ibrāhīm > ʿAbd al-Razzāq > al-Thawrī > Ṣāliḥ > al-Shaʿbī

[Machine] Ibn Mas'ud used to pray four (rak'ahs) after the two Eids.  

الطبراني:٩٥٣٠ – حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ عَنْ عَبْدِ الرَّزَّاقِ عَنِ الثَّوْرِيِّ عَنْ صَالِحٍ عَنِ الشَّعْبِيِّ قَالَ

«كَانَ ابْنُ مَسْعُودٍ يُصَلِّي بَعْدَ الْعِيدَيْنِ أَرْبَعًا»  

See similar narrations below:

Collected by Ṭabarānī
tabarani:9531 – Muḥammad b. ʿAlī b. Shuʿayb al-Simsār > Khālid b. Khidāsh > ʿĪsá b. Yūnus > Ḥurayth > al-Ḥakam > Ibrāhīm > ʿAlqamah > ʿAbdullāh

[Machine] It means "He used to pray four units after the two Eids".  

الطبراني:٩٥٣١ – حَدَّثَنَا مُحَمَّدُ بْنُ عَلِيِّ بْنِ شُعَيْبٍ السِّمْسَارُ ثنا خَالِدُ بْنُ خِدَاشِ ثنا عِيسَى بْنُ يُونُسَ عَنْ حُرَيْثٍ عَنِ الْحَكَمِ عَنْ إِبْرَاهِيمَ عَنْ عَلْقَمَةَ عَنْ عَبْدِ اللهِ

أَنَّهُ «كَانَ يُصَلِّي بَعْدَ الْعِيدَيْنِ أَرْبَعًا»  

tabarani:9556 – Isḥāq b. Ibrāhīm > ʿAbd al-Razzāq > Maʿmar > Qatādah

[Machine] That Ibn Mas'ud used to pray four units of prayer after Jumu'ah (Friday prayer).  

الطبراني:٩٥٥٦ – حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ عَنْ عَبْدِ الرَّزَّاقِ عَنْ مَعْمَرٍ عَنْ قَتَادَةَ

«أَنَّ ابْنَ مَسْعُودٍ كَانَ يُصَلِّي بَعْدَ الْجُمُعَةِ أَرْبَعًا»