كتاب الصلاة
4  
The Book of Prayers
(17)
Chapter: Sending Salat Upon The Prophet (saws) After The Tashah-hud
(17)
باب الصَّلاَةِ عَلَى النَّبِيِّ صلى الله عليه وسلم بَعْدَ التَّشَهُّدِ ‏
Sahih Muslim 406 b

A hadith like this has been narrated by Mis'ar on the authority of al-Hakam, but in the hadith transmitted by Mis'ar these words are not found:

" Should I not offer you a present?"
حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا وَكِيعٌ، عَنْ شُعْبَةَ، وَمِسْعَرٍ، عَنِ الْحَكَمِ، بِهَذَا الإِسْنَادِ مِثْلَهُ ‏.‏ وَلَيْسَ فِي حَدِيثِ مِسْعَرٍ أَلاَ أُهْدِي لَكَ هَدِيَّةً
Reference : Sahih Muslim 406b
In-book reference : Book 4, Hadith 71
USC-MSA web (English) reference : Book 4, Hadith 805
  (deprecated numbering scheme)