Musnad Ahmad 501
Abu Sahlah narrated that `Uthman (رضي الله عنه) said on the day of the house when he was under siege. The Prophet (ﷺ) solemnly advised me and I shall follow his advice with patience. Qais said:
They thought it (his advice) was about that day.
حَدَّثَنَا وَكِيعٌ، عَنْ إِسْمَاعِيلَ بْنِ أَبِي خَالِدٍ، قَالَ قَالَ قَيْسٌ فَحَدَّثَنِي أَبُو سَهْلَةَ، أَنَّ عُثْمَانَ، قَالَ يَوْمَ الدَّارِ حِينَ حُصِرَ إِنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَهِدَ إِلَيَّ عَهْدًا فَأَنَا صَابِرٌ عَلَيْهِ قَالَ قَيْسٌ فَكَانُوا يَرَوْنَهُ ذَلِكَ الْيَوْمَ‏.‏