Sunan an-Nasa'i 4145

أَخْبَرَنَا عَمْرُو بْنُ يَحْيَى بْنِ الْحَارِثِ، قَالَ حَدَّثَنَا مَحْبُوبٌ، قَالَ أَنْبَأَنَا أَبُو إِسْحَاقَ، عَنْ مُطَرِّفٍ، قَالَ سُئِلَ الشَّعْبِيُّ عَنْ سَهْمِ النَّبِيِّ، صلى الله عليه وسلم وَصَفِيِّهِ فَقَالَ أَمَّا سَهْمُ النَّبِيِّ صلى الله عليه وسلم فَكَسَهْمِ رَجُلٍ مِنَ الْمُسْلِمِينَ وَأَمَّا سَهْمُ الصَّفِيِّ فَغُرَّةٌ تُخْتَارُ مِنْ أَىِّ شَىْءٍ شَاءَ ‏.‏

It was narrated that Mutarrif said:"Ash-Shabi was asked about the share of the Prophet and what he chose for himself. He said: 'The share of the Prophet was like the share of any Muslim man, and what he chose for himself was something precious; he chose whatever he wanted to

Reference

Sunan an-Nasa'i 4145

In-book

Book 38, Hadith 13