Sunan an-Nasa'i, Hadith 2751 ⓘ
It was narrated that 'Abdullah bin Masud said: "Part of the Talbiyah of the Messenger of Allah was 'Labbaika Allahumma labbbaik, Labbaika la sharika laka labbaik, Innal-hamda wan-ni'mata laka wal-mulk, (Here I am, O Allah, here I am. Here I am, You have no partner, here I am. Verily all praise and blessings are Yours)"
أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدَةَ، قَالَ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ أَبَانَ بْنِ تَغْلِبَ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ يَزِيدَ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، قَالَ كَانَ مِنْ تَلْبِيَةِ النَّبِيِّ صلى الله عليه وسلم " لَبَّيْكَ اللَّهُمَّ لَبَّيْكَ لَبَّيْكَ لاَ شَرِيكَ لَكَ لَبَّيْكَ إِنَّ الْحَمْدَ وَالنِّعْمَةَ لَكَ " .
also referenced under: Book 24, Hadith 0 (In-Book) & Volume 3, Book 24, Hadith 2752 (DarusSalam)