مسند أحمد

It was narrated from ‘Umar that he asked the Prophet (ﷺ) ﷺ for permission to do 'Umrah and he gave him permission and said: `O my brother, do not forget us in your supplication.` And he said later in Madinah: `O my brother, include us in your supplication.` ʼUmar said: I would not like to have instead of that everything on which the sun rises, because of him saying: `O my brother.”