Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
حَدَّثَنِي مُحَمَّدُ بْنُ أَبِي بَكْرٍ، حَدَّثَنَا عُمَرُ بْنُ عَلِيٍّ، عَنْ إِسْمَاعِيلَ بْنِ أَبِي خَالِدٍ، عَنْ عَامِرٍ، قَالَ كَانَ ابْنُ عُمَرَ إِذَا حَيَّا ابْنَ جَعْفَرٍ قَالَ السَّلاَمُ عَلَيْكَ يَا ابْنَ ذِي الْجَنَاحَيْنِ.Narrated 'Amir:Whenever Ibn `Umar greeted the son of Ja`far, he used to say (to him), "Assalam 'Alaika (i.e. peace be on you) O the son of two-winged person
From Sahih al-Bukhari, whose reports the scholars accept as authentic.