Abu Hurarirah reported the Apostle of Allaah ﷺ as saying “A Muslim ruler is shield by which a battle is fought.” (Using translation from Abū Dāʾūd 2757)   

قَالَ رَسُولُ اللهِ ﷺ إِنَّمَا الْإِمَامُ جُنَّةٌ يُقَاتَلُ بِهِ  

[Machine] I heard Awf ibn Malik al-Ashjai narrating that he said, "I visited the Messenger of Allah ﷺ during the Battle of Tabuk, and he was in a dome made of adobe. He said to me, 'O Awf, prepare for six events before the Hour: my death, then the conquest of Jerusalem, then two deaths will occur among you like the death of two goats, then a wealthy overflow will occur among you until a man will be given a hundred dinars and still be discontented, then a severe turmoil will come upon you that will leave no Arab house unscathed, then there will be a peace treaty between you and the Banu Asfar (the Romans), but they will deceive you and attack you when your number reaches eighty thousand, with twelve thousand troops for each attack.' Al-Walid said, 'We remembered this Hadith from a scholar of Madinah when he mentioned the conquest of Jerusalem.' The scholar said, 'Sa'id informed me from Abu Hurairah that he used to narrate this Hadith from the Messenger of Allah ﷺ and say, "The place of the conquest of Jerusalem is Imran's House."'  

سَمِعْتُ عَوْفَ بْنَ مَالِكٍ الْأَشْجَعِيَّ ؓ يَقُولُ أَتَيْتُ رَسُولَ اللهِ ﷺ فِي غَزْوَةِ تَبُوكَ وَهُوَ فِي قُبَّةٍ مِنْ أَدَمٍ فَقَالَ لِي يَا عَوْفُ اعْدُدْ سِتًّا بَيْنَ يَدَيِ السَّاعَةِ مَوْتِي ثُمَّ فَتْحُ بَيْتِ الْمَقْدِسِ ثُمَّ مُوتَانٌ يَأْخُذُ فِيكُمْ كَقُعَاصِ الْغَنَمِ ثُمَّ اسْتِفَاضَةُ الْمَالِ فِيكُمْ حَتَّى يُعْطَى الرَّجُلُ مِائَةَ دِينَارٍ فَيَظَلَّ سَاخِطًا ثُمَّ فِتْنَةٌ لَا تُبْقِي بَيْتًا مِنَ الْعَرَبِ إِلَّا دَخَلَتْهُ ثُمَّ هُدْنَةٌ تَكُونُ بَيْنَكُمْ وَبَيْنَ بَنِي الْأَصْفَرِ فَيَغْدِرُونَ فَيَأْتُونَكُمْ تَحْتَ ثَمَانِينَ غَايَةً تَحْتَ كُلِّ غَايَةٍ اثْنَا عَشَرَ أَلْفًا قَالَ الْوَلِيدُ فَذَاكَرْنَا هَذَا الْحَدِيثَ شَيْخًا مِنْ شُيُوخِ الْمَدِينَةِ فِي قَوْلِهِ ثُمَّ فَتْحُ بَيْتِ الْمَقْدِسِ فَقَالَ الشَّيْخُ أَخْبَرَنِي سَعِيدٌ عَنْ أَبِي هُرَيْرَةَ ؓ أَنَّهُ كَانَ يُحَدِّثُ بِهَذَا الْحَدِيثِ عَنْ رَسُولِ اللهِ ﷺ وَيَقُولُ مَكَانَ فَتْحِ بَيْتِ الْمَقْدِسِ عِمْرَانُ بَيْتِ الْمَقْدِسِ  

I heard the Messenger of Allah ﷺ say: you will make a secure peace with the Byzantines, then you and they will fight an enemy behind you, and you will be victorious, take booty, and be safe. You will then return and alight in a meadow with mounds and one of the Christians will raise the cross and say: The cross has conquered. One of the Muslims will become angry and smash it, and the Byzantines will act treacherously and prepare for the battle. (Using translation from Abū Dāʾūd 4292)   

أَنَّهُ قَالَ لَهُ انْطَلِقْ بِنَا إِلَى ذِي مَخْبَرٍ رَجُلٌ مِنْ أَصْحَابِ رَسُولِ اللهِ ﷺ قَالَ فَأَتَيْنَاهُ فَقَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ سَيُصَالِحُكُمُ الرُّومُ صُلْحًا آمِنًا ثُمَّ تَغْزُونَ أَنْتُمْ وَهُمْ عَدُوًّا فَتُنْصَرُونَ وَتَسْلَمُونَ وَتَغْنَمُونَ ثُمَّ تَنْصَرِفُونَ فَتَنْزِلُونَ بِمَرْجٍ ذِي تُلُولٍ فَيَرْفَعُ رَجُلٌ مِنَ النَّصْرَانِيَّةِ الصَّلِيبَ فَيَقُولُ غَلَبَ الصَّلِيبُ فَيَغْضَبُ رَجُلٌ مِنَ الْمُسْلِمِينَ فَيَقُومُ إِلَيْهِ فَيَدُقُّهُ فَعِنْدَ ذَلِكَ تَغْضَبُ الرُّومُ وَيَجْمَعُونَ لِلْمَلْحَمَةِ