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حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَابْنُ أَبِي عُمَرَ، قَالاَ حَدَّثَنَا سُفْيَانُ، عَنْ يَزِيدَ بْنِ خُصَيْفَةَ، بِهَذَا الإِسْنَادِ . وَزَادَ ابْنُ أَبِي عُمَرَ فِي حَدِيثِهِ قَالَ أَبُو سَعِيدٍ فَقُمْتُ مَعَهُ فَذَهَبْتُ إِلَى عُمَرَ فَشَهِدْتُ .
This hadith has been narrated on the authority of Yazid b. Khusaifa with the same chain of transmitters but with this addition:
Abu Sa’id said: So I stood up, and went to ‘Umar and gave witness (to what Abu Musa had said).
USC-MSA web (English) reference