عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((أَمَرَنِي جِبْرِيلُ بِرَفْعِ الصَّوْتِ فِي الْإِهْلَالِ فَإِنَّهُ مِنْ شَعَائِرِ الْحَجِّ))
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Jibreel (peace be upon him) has commanded me to proclaim the Talbiyah aloud, for it is among the rites and symbols of Hajj.