Narrated Dhu Mikhbar:

Hassan ibn Atiyyah said: Makhul and Ibn Zakariyya went to Khalid ibn Ma'dan, and I also went along with them. He reported a tradition on the authority of Jubayr ibn Nufayr. He said: Go with us to Dhu Mikhbar, a man from the Companions of the Prophet ﷺ. We came to him and Jubayr asked him about peace. He said: 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.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ النُّفَيْلِيُّ، حَدَّثَنَا عِيسَى بْنُ يُونُسَ، حَدَّثَنَا الأَوْزَاعِيُّ، عَنْ حَسَّانَ بْنِ عَطِيَّةَ، قَالَ مَالَ مَكْحُولٌ وَابْنُ أَبِي زَكَرِيَّاءَ إِلَى خَالِدِ بْنِ مَعْدَانَ وَمِلْتُ مَعَهُمَا فَحَدَّثَنَا عَنْ جُبَيْرِ بْنِ نُفَيْرٍ، قَالَ قَالَ جُبَيْرٌ انْطَلِقْ بِنَا إِلَى ذِي مِخْبَرٍ - رَجُلٌ مِنْ أَصْحَابِ النَّبِيِّ ﷺ - فَأَتَيْنَاهُ فَسَأَلَهُ جُبَيْرٌ عَنِ الْهُدْنَةِ فَقَالَ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ " سَتُصَالِحُونَ الرُّومَ صُلْحًا آمِنًا وَتَغْزُونَ أَنْتُمْ وَهُمْ عَدُوًّا مِنْ وَرَائِكُمْ " .