Arabic Text
وَحَدَّثَنِي حَجَّاجُ بْنُ الشَّاعِرِ، حَدَّثَنَا حَسَنٌ الأَشْيَبُ، حَدَّثَنَا شَيْبَانُ، عَنْ يَحْيَى، قَالَ وَأَخْبَرَنِي أَبُو سَلَمَةَ، أَنَّهُ سَمِعَ ابْنَ عُمَرَ، - رضى الله عنهما - يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " الشَّهْرُ تِسْعٌ وَعِشْرُونَ " .
English Translation
Ibn Umar (Allah be pleased with both of them) reported Allah's Messenger (ﷺ) as saying: The month may consist of twenty-nine days.
This hadith is from Sahih Muslim, one of the most rigorously authenticated collections in Islamic scholarship. No editorial opinion is added.