Hadith 26066

حَدَّثَنَا رَوْحٌ , قَالَ : حَدَّثَنَا أَبُو عَامِرٍ الْخَزَّازُ ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي مُلَيْكَةَ , عَنْ عَائِشَةَ , قَالَتْ : دَخَلَ عَلَيَّ لِتِسْعٍ وَعِشْرِينَ , فَقُلْتُ : إِنِّي مَا خَفِيَتْ عَلَيَّ مِنْهُنَّ لَيْلَةٌ , إِنَّمَا مَضَتْ تِسْعٌ وَعِشْرُونَ لَيْلَةً , فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : " يَا عَائِشَةُ , إِنَّ الشَّهْرَ تِسْعٌ وَعِشْرُونَ " .
It is narrated from Umm al-Mu'mineen Hazrat Aisha (may Allah be pleased with her) that once the Prophet (peace and blessings be upon him) took an oath that he would not go to his pure wives for a month. After 29 days had passed, the Prophet (peace and blessings be upon him) came to me first. I said, "According to my count, today is the 29th day." The Prophet (peace and blessings be upon him) said, "Sometimes a month is of 29 days."
Hadith Reference مسند احمد / مسند النساء / 26066
Hadith Grading حکم دارالسلام: حديث صحيح، وهذا إسناد اختلف فيه على ابن أبى مليكة