Sahih Muslim Book - 33, Hadith - 4803

وَحَدَّثَنَاهُ حَسَنُ بْنُ الرَّبِيعِ الْبَجَلِىُّ حَدَّثَنَا ابْنُ الْمُبَارَكِ عَنْ هِشَامٍ عَنِ الْحَسَنِ عَنْ ضَبَّةَ بْنِ مِحْصَنٍ عَنْ أُمِّ سَلَمَةَ قَالَتْ قَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم-. فَذَكَرَ مِثْلَهُ إِلاَّ قَوْلَهُ « وَلَكِنْ مَنْ رَضِىَ وَتَابَعَ ». لَمْ يَذْكُرْهُ.

It was narrated that Umm Salamah said: "The Messenger of Allah (s.a.w) said..." a similar report (as no. 4801 ), except for the words: "...but whoever accepts and follows" which he (the sub-narrator) did not mention.