The Book of Fasting
22/15. Chapter:
Mentioning The Report Of Ibn 'Abbas about That
Sunan an-Nasai
أَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ، - هُوَ أَبُو بُرَيْدٍ الْجَرْمِيُّ بَصْرِيٌّ - عَنْ بَهْزٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ سَلَمَةَ، عَنْ أَبِي الْحَكَمِ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " أَتَانِي جِبْرِيلُ عَلَيْهِ السَّلاَمُ فَقَالَ الشَّهْرُ تِسْعٌ وَعِشْرُونَ يَوْمًا " .
It was narrated from Ibn 'Abbas that the Prophet said: "Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days."'
Reference : Sunan an-Nasa'i 2133In-book reference : Book 22, Hadith 44English translation : Vol. 3, Book 22, Hadith 2135