That he was in the company of the Prophet ﷺ on a journey, riding a troublesome camel belonging to ʿUmar. The camel used to go ahead of the Prophet, so Ibn ʿUmar's father would say, "O ʿAbdullah! No one should go ahead of the Prophet." The Prophet ﷺ said to him, "Sell it to me." ʿUmar said to the Prophet "It is for you." So, he bought it and said, "O ʿAbdullah! It is for you, and you can do with it what you like."
أَنَّهُ كَانَ مَعَ النَّبِيِّ ﷺ فِي سَفَرٍ فَكَانَ عَلَى بَكْرٍ لِعُمَرَ صَعْبٍ فَكَانَ يَتَقَدَّمُ النَّبِيَّ ﷺ فَيَقُولُ أَبُوهُ يَا عَبْدَ اللَّهِ لاَ يَتَقَدَّمِ النَّبِيَّ ﷺ أَحَدٌ فَقَالَ لَهُ النَّبِيُّ ﷺ بِعْنِيهِ فَقَالَ عُمَرُ هُوَ لَكَ فَاشْتَرَاهُ ثُمَّ قَالَ هُوَ لَكَ يَا عَبْدَ اللَّهِ فَاصْنَعْ بِهِ مَا شِئْتَ