The Book of Manners and Etiquette
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَعَبْدُ اللَّهِ بْنُ بَرَّادٍ الأَشْعَرِيُّ، وَأَبُو كُرَيْبٍ قَالُوا حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ بُرَيْدٍ، عَنْ أَبِي بُرْدَةَ، عَنْ أَبِي مُوسَى، قَالَ وُلِدَ لِي غُلاَمٌ فَأَتَيْتُ بِهِ النَّبِيَّ صلى الله عليه وسلم فَسَمَّاهُ إِبْرَاهِيمَ وَحَنَّكَهُ بِتَمْرَةٍ .Abu Musa reported:A child was born in my house and I brought him to Allah's Apostle (may peace be upod him) and he gave him the name of Ibrahim and he rubbed his palate with dates
From Sahih Muslim, whose reports the scholars accept as authentic.