Who said that the Messenger of Allah said: "Jibril came to me and ordered me to order my Companions to raise their voices with the Ihlal, or; the Talbiyah."
Jami` at-Tirmidhi Book 9, Hadith 22
← Previous Hadith the Messenger of Allah said: "There is no Muslim who says the Talbiyah except that - on his right and left, until the end f the land, from here to there - the rocks, or trees, or mud say the Talbiyah."

Jami` at-Tirmidhi Book 9, Hadith 21 Next Hadith → who said that he saw the Prophet disrobing for his Ihlal and to perform Ghusl.

Jami` at-Tirmidhi Book 9, Hadith 23