It was narrated that Jubair bin Nufair said:
“Jubair said to me: ‘Let’s go to Dhu Mikhmar, who was a man from among the Companions of the Prophet ﷺ.’ So I went with them and he asked him about the peace treaty (with the Romans). He said: ‘I heard the Prophet ﷺ say: “The Romans will enter into a peace treaty with you, then you and they will fight one another as enemies, and you will be victorious; you will collect the spoils of war and be safe. Then you will come back until you stop in a meadow with many hillocks. A man from among the people of the Cross will raise the Cross and will say: ‘The Cross has prevailed.’ Then a man among the Muslims will become angry and will go and break the Cross. Then the Romans will prove treacherous (breaking the treaty) (and will gather) for the fierce battle.”

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، عَنِ الأَوْزَاعِيِّ، عَنْ حَسَّانَ بْنِ عَطِيَّةَ، قَالَ مَالَ مَكْحُولٌ وَابْنُ أَبِي زَكَرِيَّا إِلَى خَالِدِ بْنِ مَعْدَانَ وَمِلْتُ مَعَهُمَا فَحَدَّثَنَا عَنْ جُبَيْرِ بْنِ نُفَيْرٍ، قَالَ قَالَ لِي جُبَيْرٌ انْطَلِقْ بِنَا إِلَى ذِي مِخْمَرٍ - وَكَانَ رَجُلاً مِنْ أَصْحَابِ النَّبِيِّ ﷺ - فَانْطَلَقْتُ مَعَهُمَا فَسَأَلَهُ عَنِ الْهُدْنَةِ فَقَالَ سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ " سَتُصَالِحُكُمُ الرُّومُ صُلْحًا آمِنًا ثُمَّ تَغْزُونَ أَنْتُمْ وَهُمْ عَدُوًّا فَتُنْصَرُونَ وَتَغْنَمُونَ وَتَسْلَمُونَ ثُمَّ تَنْصَرِفُونَ حَتَّى تَنْزِلُوا بِمَرْجٍ ذِي تُلُولٍ فَيَرْفَعُ رَجُلٌ مِنْ أَهْلِ الصَّلِيبِ الصَّلِيبَ فَيَقُولُ غَلَبَ الصَّلِيبُ . فَيَغْضَبُ رَجُلٌ مِنَ الْمُسْلِمِينَ فَيَقُومُ إِلَيْهِ فَيَدُقُّهُ فَعِنْدَ ذَلِكَ تَغْدِرُ الرُّومُ وَيَجْتَمِعُونَ لِلْمَلْحَمَةِ " .