It wasnarrated from Abu Hurairah that the Messenger of Allah (ﷺ)used tosay in his Talbiyah:
"Labbaika ilahal-haqq, labbaika (Here Iam, Ogod of Truth, here I am)." (FR)
English reference (FR): Vol. 4, Book 25, Hadith 2920 (FR)
Arabic reference (FR): Book 25, Hadith 3032 (FR)