[Machine] Muawiyah was traveling in the land of the Romans and there was a distance between him and them. He intended to approach them, so when the distance was over, he attacked them. Then, a sheikh on a horse said, "Allahu Akbar (Allah is the Greatest), Allahu Akbar, loyalty, not treachery. Indeed, the Messenger of Allah ﷺ said: "Whoever has a covenant with a people should not untie it or tighten it until its term is over, or he comes to an agreement with them." Muawiyah heard this and returned, and there was Amr bin Abasa.
كَانَ مُعَاوِيَةُ يَسِيرُ بِأَرْضِ الرُّومِ وَكَانَ بَيْنَهُمْ وَبَيْنَهُ أَمَدٌ فَأَرَادَ أَنْ يَدْنُوَ مِنْهُمْ فَإِذَا انْقَضَى الْأَمَدُ غَزَاهُمْ فَإِذَا شَيْخٌ عَلَى دَابَّةٍ يَقُولُ اللهُ أَكْبَرُ اللهُ أَكْبَرُ وَفَاءٌ لَا غَدْرٌ إِنَّ رَسُولَ اللهِ ﷺقَالَ مَنْ كَانَ بَيْنَهُ وَبَيْنَ قَوْمٍ عَهْدٌ فَلَا يَحِلَّنَّ عُقْدَةً وَلَا يَشُدَّهَا حَتَّى يَنْقَضِيَ أَمَدُهَا أَوْ يَنْبِذَ إِلَيْهِمْ عَلَى سَوَاءٍ فَبَلَغَ ذَلِكَ مُعَاوِيَةَ فَرَجَعَ وَإِذَا الشَّيْخُ عَمْرُو بْنُ عَبَسَةَ