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وَحَدَّثَنَاهُ عَبْدُ بْنُ حُمَيْدٍ، حَدَّثَنَا أَبُو عَامِرٍ عَبْدُ الْمَلِكِ بْنُ عَمْرٍو، حَدَّثَنَا إِبْرَاهِيمُ، بْنُ طَهْمَانَ بِهَذَا الإِسْنَادِ غَيْرَ أَنَّهُ قَالَ فَنَادَيَا .
This hadith has been narrated on the authority of Ibrahim b. Tahman with the same chain of transmitters but with this variation that he said:
Both of them made the announcement.”
USC-MSA web (English) reference