Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
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:2133 – ʿAmr b. Yazīd > Abū Burayd al-Jarmī Baṣrī > Bahz > Shuʿbah > Salamah > Abū al-Ḥakam > Ibn ʿAbbās

"Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days."'  

النسائي:٢١٣٣ – أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ هُوَ أَبُو بُرَيْدٍ الْجَرْمِيُّ بَصْرِيٌّ عَنْ بَهْزٍ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ سَلَمَةَ عَنْ أَبِي الْحَكَمِ عَنِ ابْنِ عَبَّاسٍ

عَنِ النَّبِيِّ ﷺ قَالَ أَتَانِي جِبْرِيلُ عَلَيْهِ السَّلاَمُ فَقَالَ الشَّهْرُ تِسْعٌ وَعِشْرُونَ يَوْمًا  

See similar narrations below:

Collected by Aḥmad, Nasāʾī's Kubrá, Suyūṭī
ahmad:1885 – ʿAmr b. al-Haytham > Shuʿbah > Salamah b. Kuhayl > Abū al-Ḥakam > Ibn ʿAbbās

"Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days."' (Using translation from Nasāʾī 2133)   

أحمد:١٨٨٥ – حَدَّثَنَا عَمْرُو بْنُ الْهَيْثَمِ حَدَّثَنَا شُعْبَةُ عَنْ سَلَمَةَ بْنِ كُهَيْلٍ عَنْ أَبِي الْحَكَمِ عَنِ ابْنِ عَبَّاسٍ

أَنَّ جِبْرِيلَ عَلَيْهِ السَّلامُ أَتَى النَّبِيَّ ﷺ فَقَالَ تَمَّ الشَّهْرُ تِسْعًا وَعِشْرِينَ  

nasai-kubra:2454 – ʿAmr b. Yazīd > Bahz > Shuʿbah > Salamah > Abū al-Ḥakam > Ibn ʿAbbās

"Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days."' (Using translation from Nasāʾī 2133)   

الكبرى للنسائي:٢٤٥٤ – أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ عَنْ بَهْزٍ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ سَلَمَةَ عَنْ أَبِي الْحَكَمِ عَنِ ابْنِ عَبَّاسٍ

عَنِ النَّبِيِّ ﷺ قَالَ أَتَانِي جِبْرِيلُ فَقَالَ تَمَّ الشَّهْرُ تِسْعًا وَعِشْرِينَ  

suyuti:269a –

"Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days."' (Using translation from Nasāʾī 2133)   

السيوطي:٢٦٩a –

"أتانى جبريل فقال: الشهرُ تسعٌ وعشرون يومًا".  

[ن] النسائي عن ابن عباس (عن أبيه)