(I have had the privilege) of accompanying Ibn 'Umar up to Medina but I did not hear him narrate anything from Messenger of Allah ﷺ except one hadith. And he said: We were in the presence of Messenger of Allah ﷺ that there was brought to him the kernel of a date. The rest of the hadith is the same.

عَنْ رَسُولِ اللَّهِ ﷺ إِلاَّ حَدِيثًا وَاحِدًا قَالَ كُنَّا عِنْدَ النَّبِيِّ ﷺ فَأُتِيَ بِجُمَّارٍ فَذَكَرَ بِنَحْوِ حَدِيثِهِمَا