22/10/2011
It has been narrated from ‘Ali [Ibn Abi Talib] (peace be upon him) that he said, “Jibra’il descended to the Prophet (blessings of Allah be upon him and his family) and said to him, ‘O’ Muhammad! Command your companions al-’Ajj and al-Thalj. The ‘Ajj is to raise your voice in pronouncing the Talbiyyah (Labbayk Allahumma Labbayk) out loud, while the Thalj is to slaughter an animal (on the day of ‘Eid).”
Ma’aniul Akhbar, Page 224