Sunan Ibn Majah, Volume 2, Book 6, Hadith 1516 (DarusSalam) ⓘ
It was narrated from Aswad bin Qais that he heard Nubaih Al-‘Anazi say: “I heard Jabir bin ‘Abdullah say: ‘The Messenger of Allah commanded that the slain of the battle of Uhud should be returned to the battlefield; they had been moved to Al-Madinah.’”
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، وَسَهْلُ بْنُ أَبِي سَهْلٍ، قَالاَ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الأَسْوَدِ بْنِ قَيْسٍ، سَمِعَ نُبَيْحًا الْعَنَزِيَّ، يَقُولُ سَمِعْتُ جَابِرَ بْنَ عَبْدِ اللَّهِ، يَقُولُ إِنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ أَمَرَ بِقَتْلَى أُحُدٍ أَنْ يُرَدُّوا إِلَى مَصَارِعِهِمْ وَكَانُوا نُقِلُوا إِلَى الْمَدِينَةِ .
also referenced under: Hadith 1516 (Reference) & Book 6, Hadith 1583 (In-Book)