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 Messenger of Allah 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." (Using translation from Bukhārī 4425)   

قَدْ نَفَعَنِي اللهُ بِكَلِمَةٍ سَمِعْتُهَا مِنْ رَسُولِ اللهِ ﷺ بَعْدَمَا كِدْتُ أَنْ أَلْحَقَ بِأَصْحَابِ الْجَمَلِ فَأُقَاتِلَ مَعَهُمْ بَلَغَ رَسُولَ اللهِ ﷺ أَنَّ أَهْلَ فَارِسٍ مَلَّكُوا عَلَيْهِمُ ابْنَةَ كِسْرَى فَقَالَ لَنْ يُفْلِحَ قَوْمٌ وَلَّوْا أَمْرَهُمُ امْرَأَةً لَفْظُ حَدِيثِ الْحَرْبِيِّ وَفِي رِوَايَةِ هِشَامٍ مَلَّكُوا أَمْرَهُمُ امْرَأَةً  

While the Prophet ﷺ was saying something in a gathering, a Bedouin came and asked him, "When would the Hour (Doomsday) take place?" Messenger of Allah ﷺ continued his talk, so some people said that Messenger of Allah ﷺ had heard the question, but did not like what that Bedouin had asked. Some of them said that Messenger of Allah ﷺ had not heard it. When the Prophet ﷺ finished his speech, he said, "Where is the questioner, who inquired about the Hour (Doomsday)?" The Bedouin said, "I am here, O Allah's Apostle ." Then the Prophet ﷺ said, "When honesty is lost, then wait for the Hour (Doomsday)." The Bedouin said, "How will that be lost?" The Prophet ﷺ said, "When the power or authority comes in the hands of unfit persons, then wait for the Hour (Doomsday.)" (Using translation from Bukhārī 59)   

بَيْنَمَا النَّبِيُّ ﷺ جَالِسٌ فِي مَجْلِسِهِ يُحَدِّثُ الْقَوْمَ حَدِيثًا جَاءَهُ أَعْرَابِيٌّ فَقَالَ يَا رَسُولَ اللهِ مَتَى السَّاعَةُ؟ وَمَضَى رَسُولُ اللهِ ﷺ يُحَدِّثُ فَقَالَ بَعْضُ الْقَوْمِ سَمِعَ مَا قَالَ فَكَرِهَ مَا قَالَ وَقَالَ بَعْضٌ لَمْ يَسْمَعْ حَتَّى إِذَا قَضَى حَدِيثَهُ قَالَ أَيْنَ السَّائِلُ عَنِ السَّاعَةِ؟ قَالَ هَذَا أَنَا يَا رَسُولَ اللهِ قَالَ إِذَا ضُيِّعَتِ الْأَمَانَةُ فَانْتَظِرِ السَّاعَةَ قَالُوا يَا رَسُولَ اللهِ مَا إِضَاعَتُهَا؟ قَالَ إِذَا أُسْنِدُ الْأَمْرُ إِلَى غَيْرِ أَهْلِهِ فَانْتَظِرِ السَّاعَةَ  

[Machine] "The Messenger of Allah ﷺ has betrayed Allah, His Prophet, and all Muslims whoever employs a worker from among the Muslims while he knows that there are others who are more deserving of that and is also more knowledgeable of the Book of Allah and the Sunnah of His Prophet."  

رَسُولِ اللهِ ﷺ مَنِ اسْتَعْمَلَ عَامِلًا مِنَ الْمُسْلِمِينَ وَهُوَ يَعْلَمُ أَنَّ فِيهِمْ أَوْلَى بِذَلِكَ مِنْهُ وَأَعْلَمُ بِكِتَابِ اللهِ وَسُنَّةِ نَبِيِّهِ فَقَدْ خَانَ اللهَ وَرَسُولَهُ وَجَمِيعَ الْمُسْلِمِينَ