I heard Allah's Apostle (way peace be upon him) pronouncing Talbiya for both Hajj and Umra. Bakr (one of the narrators) said: I narrated it to Ibn 'Umar, whereupon he said: He (the Holy Prophet) pronounced the Talbiya for Hajj alone. I met Anas and narrated to him the words of Ibn 'Umar, whereupon he said: You treat us not but only as children. I heard Messenger of Allah ﷺ pronouncing Talbiya both for 'Umra and Hajj. (Using translation from Muslim 1232a)
سَمِعْتُ النَّبِيَّ ﷺ يُلَبِّي بِالْحَجِّ وَالْعُمْرَةِ جَمِيعًا قَالَ حُمَيْدٌ قَالَ بَكْرٌ فَحَدَّثْتُ بِذَلِكَ ابْنَ عُمَرَ فَقَالَ لَبَّى بِالْحَجِّ وَحْدَهُ فَلَقِيتُ أَنَسًا فَحَدَّثْتُهُ بِقَوْلِ ابْنِ عُمَرَ فَقَالَ أَنَسٌ مَا تَعُدُّونَنَا إِلَّا صِبْيَانًا سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَبَّيْكَ عُمْرَةً وَحَجًّا