[Machine] The Messenger of Allah ﷺ said, "Gabriel commanded me to raise my voice during the call to prayer, for it is one of the signs of Hajj." All of these chains of narration are authentic, and none of them contradict each other. The early generations used to gather chains of narration for the same text, just as we do now, and the two sheikhs did not exclude this hadith.  

قَالَ رَسُولُ اللَّهِ ﷺ «أَمَرَنِي جِبْرِيلُ بِرَفْعِ الصَّوْتِ بِالْإِهْلَالِ فَإِنَّهُ مِنْ شَعَائِرِ الْحَجِّ» هَذِهِ الْأَسَانِيدُ كُلُّهَا صَحِيحَةٌ وَلَيْسَ يُعَلِّلُ وَاحِدٌ مِنْهَا الْآخَرَ فَإِنَّ السَّلَفَ كَانَ يَجْتَمِعُ عِنْدَهُمُ الْأَسَانِيدُ لِمَتْنٍ وَاحِدٍ كَمَا يَجْتَمِعُ عِنْدَنَا الْآنَ وَلَمْ يُخَرِّجِ الشَّيْخَانِ هَذَا الْحَدِيثَ