Sunan an-Nasa'i, Hadith 2265 ⓘ
It was narrated that Abu Salamah said: "When the Messenger of Allah was eating breakfast in Marr Az-Zahran, and Abu Bakr and 'Umar were with him, he said: '(Come and eat) breakfast." (Daif) He narrated it in Mursal form.
أَخْبَرَنَا عِمْرَانُ بْنُ يَزِيدَ، قَالَ حَدَّثَنَا مُحَمَّدُ بْنُ شُعَيْبٍ، قَالَ أَخْبَرَنِي الأَوْزَاعِيُّ، عَنْ يَحْيَى، أَنَّهُ حَدَّثَهُ عَنْ أَبِي سَلَمَةَ، قَالَ بَيْنَمَا رَسُولُ اللَّهِ صلى الله عليه وسلم يَتَغَدَّى بِمَرِّ الظَّهْرَانِ وَمَعَهُ أَبُو بَكْرٍ وَعُمَرُ فَقَالَ " الْغَدَاءَ " . مُرْسَلٌ .
also referenced under: Book 22, Hadith 176 (In-Book) & Volume 3, Book 22, Hadith 2267 (DarusSalam)