وَعَن أبي سلهة مولى عُثْمَان رَضِي الله عَنْهُمَا قَالَ: جَعَلَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُسِرُّ إِلَى عُثْمَانَ وَلَوْنُ عُثْمَانَ يَتَغَيَّرُ فَلَمَّا كَانَ يَوْم الدَّار قُلْنَا: أَلا نُقَاتِل؟ قَالَ: لَا أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَهِدَ إِلَيَّ أَمْرًا فَأَنَا صَابِرٌ نَفسِي عَلَيْهِ
Abu Sahla `Uthman's client said: The Prophet began to tell `Uthman something in private and `Uthman's colour changed. On the day of the house, we asked him if he would not fight and he replied, "No, God's messenger charged me with something and I shall show endurance in adhering to it."