كتاب المغازى
64  
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
(82)
Chapter: The letter of the Prophet (saws) to Kisra (Khosrau) and Qaiser (Caesar)
(82)
باب كِتَابِ النَّبِيِّ صلى الله عليه وسلم إِلَى كِسْرَى وَقَيْصَرَ
Sahih al-Bukhari 4425

Narrated Abu Bakra:

During the days (of the battle) of Al-Jamal, Allah benefited me with a word I had heard from Allah's Apostle after I had been about to join the Companions of Al-Jamal (i.e. the camel) and fight along with them. When Allah's Messenger (ﷺ) was informed that the Persians had crowned the daughter of Khosrau as their ruler, he said, "Such people as ruled by a lady will never be successful."

حَدَّثَنَا عُثْمَانُ بْنُ الْهَيْثَمِ، حَدَّثَنَا عَوْفٌ، عَنِ الْحَسَنِ، عَنْ أَبِي بَكْرَةَ، قَالَ لَقَدْ نَفَعَنِي اللَّهُ بِكَلِمَةٍ سَمِعْتُهَا مِنْ، رَسُولِ اللَّهِ صلى الله عليه وسلم أَيَّامَ الْجَمَلِ، بَعْدَ مَا كِدْتُ أَنْ أَلْحَقَ بِأَصْحَابِ الْجَمَلِ فَأُقَاتِلَ مَعَهُمْ قَالَ لَمَّا بَلَغَ رَسُولَ اللَّهِ صلى الله عليه وسلم أَنَّ أَهْلَ فَارِسَ قَدْ مَلَّكُوا عَلَيْهِمْ بِنْتَ كِسْرَى قَالَ ‏ "‏ لَنْ يُفْلِحَ قَوْمٌ وَلَّوْا أَمْرَهُمُ امْرَأَةً ‏"‏‏.‏
Reference : Sahih al-Bukhari 4425
In-book reference : Book 64, Hadith 447
USC-MSA web (English) reference : Vol. 5, Book 59, Hadith 709
  (deprecated numbering scheme)