ʿAbdullah (bin ʿUmar), used to slaughter (his sacrifice) at the Manhar. ('Ubaidullah, a sub-narrator said, "The Manhar of Messenger of Allah ﷺ.")  

أَنَّ عَبْدَ اللَّهِ ؓ كَانَ يَنْحَرُ فِي الْمَنْحَرِ قَالَ عُبَيْدُ اللَّهِ مَنْحَرِ رَسُولِ اللَّهِ ﷺ  

Ibn ʿUmar used to send his Hadi from Jam' (to Mina) in the last third of the night with the pilgrims amongst whom there were free men and slaves, till it was taken into the Manhar (slaughtering place) of the Prophet ﷺ .  

أَنَّ ابْنَ عُمَرَ ؓ كَانَ يَبْعَثُ بِهَدْيِهِ مِنْ جَمْعٍ مِنْ آخِرِ اللَّيْلِ حَتَّى يُدْخَلَ بِهِ مَنْحَرُ النَّبِيِّ ﷺ مَعَ حُجَّاجٍ فِيهِمُ الْحُرُّ وَالْمَمْلُوكُ