814. hadíth
وَ فِي رِوَايَةِ حَرِيزٍ: «أَنَّ رَسُولَ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ لَمَّا أَحْرَمَ أَتَاهُ جَبْرَئِيلُ عَلَيْهِ اَلسَّلاَمُ فَقَالَ مُرْ أَصْحَابَكَ بِالْعَجِّ وَ اَلثَّجِّ فَالْعَجُّ رَفْعُ اَلصَّوْتِ بِالتَّلْبِيَةِ وَ اَلثَّجُّ نَحْرُ اَلْبُدْنِ ».
In a narration from Hariz: "When the Messenger of Allah (swt) (peace be upon him and his family) entered the state of Ihram, Archangel Jibril (a.s) came to him and said: 'Command your companions to perform al-'ajj and al-thajj. Al-'ajj is raising the voice with the Talbiyah, and al-thajj is the slaughtering of sacrificial camels.'"