Sahih Muslim

Sahih Muslim 1089 a

The meaning of the Prophet's words: "The two months of 'Id cannot both be incomplete"
Arabic hadith text
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ خَالِدٍ، عَنْ عَبْدِ الرَّحْمَنِ، بْنِ أَبِي بَكْرَةَ عَنْ أَبِيهِ، - رضى الله عنه - عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏شَهْرَا عِيدٍ لاَ يَنْقُصَانِ رَمَضَانُ وَذُو الْحِجَّةِ ‏"
Translation
The son of Abu Bakra reported it on the authority of his father that the Messenger of Allah (ﷺ) had said

The two months of 'Id, Ramadan and Dhu'l-Hijja (are not incomplete).