Sunan an-Nasa'i, Volume 3, Book 24, Hadith 2755 (DarusSalam) ⓘ
It was narrated from Ibn 'Abbas: That the Messenger of Allah began the Talbiyah following the prayer.
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا عَبْدُ السَّلاَمِ، عَنْ خُصَيْفٍ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَهَلَّ فِي دُبُرِ الصَّلاَةِ .
also referenced under: Hadith 2754 (Reference) & Book 24, Hadith 0 (In-Book)