Hadithcore
Mishkat al-Masabih, 2546

Ibn ‘Umar said that at the Farewell Pilgrimage God’s messenger performed the <i>‘umra</i> first and the <i>hajj</i> later (The phrase used is <i>tamata'a bil-’umra ilal-hajj</i> which indicates gaining the advantage of the <i>‘umra</i> and waiting till the time for the <i>hajj</i> comes without requiring to wear the <i>ihram</i> during the intervening period. It is a difficult phrase to translate, and therefore one can only indicate its general meaning in a translation), raising his voice in the talbiya first for the <i>'umra</i> and afterwards for the <i>hajj</i>. Bukhari and Muslim.

وَعَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: تَمَتَّعَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي حَجَّةِ الْوَدَاعِ بِالْعُمْرَةِ إِلَى الْحَجِّ بدأَ فأهلَّ بالعمْرةِ ثمَّ أهلَّ بالحجّ

References1 variant
In-Book Reference
Book 10, Hadith 40