Sahih Muslim #6260 · The Book of the Merits of the Companions

Sahih MuslimIyas reported on the authority of his father
Sahih Muslim · Book 44 · The Book of the Merits of the Companions
Sahih Muslim · كتاب 44 · كتاب فضائل الصحابة
I (had the honour of) leading the white mule on which rode Allah's Apostle (ﷺ) and with him were Hasan and Husain, till it reached the apartment of Allah's Apostle (ﷺ). The one amongst them was seated before him and the other one was seated behind him.
حَدَّثَنِي عَبْدُ اللَّهِ بْنُ الرُّومِيِّ الْيَمَامِيُّ، وَعَبَّاسُ بْنُ عَبْدِ الْعَظِيمِ الْعَنْبَرِيُّ، قَالاَ حَدَّثَنَا النَّضْرُ بْنُ مُحَمَّدٍ، حَدَّثَنَا عِكْرِمَةُ، - وَهُوَ ابْنُ عَمَّارٍ - حَدَّثَنَا إِيَاسٌ، عَنْ أَبِيهِ، قَالَ لَقَدْ قُدْتُ بِنَبِيِّ اللَّهِ صلى الله عليه وسلم وَالْحَسَنِ وَالْحُسَيْنِ بَغْلَتَهُ الشَّهْبَاءَ حَتَّى أَدْخَلْتُهُمْ حُجْرَةَ النَّبِيِّ صلى الله عليه وسلم هَذَا قُدَّامَهُ وَهَذَا خَلْفَهُ ‏.‏
Reference : Sahih Muslim 6260In-book reference : Book 44, Hadith 90