" جَاءَنِي جِبْرِيلُ فَقَالَ لِي يَا مُحَمَّدُ مُرْ أَصْحَابَكَ أَنْ يَرْفَعُوا أَصْوَاتَهُمْ بِالتَّلْبِيَةِ "
It was narrated from Khallad bin As-Sa'ib, from his father that the Messenger of Allah said: "Jibril came to me and said: 'O Muhammad! Tell your Companions to rise their voices when reciting the Talbiyah."