Sunan an-Nasa'i, Volume 3, Book 24, Hadith 3035 (DarusSalam) ⓘ
It was narrated that Ubaidullah bin Abu Yazeed said: I heard Ibn Abbas say: I was one of those whom the Prophet sent ahead amongh the weak ones of his family.
أَخْبَرَنَا الْحُسَيْنُ بْنُ حُرَيْثٍ، قَالَ أَنْبَأَنَا سُفْيَانُ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي يَزِيدَ، قَالَ سَمِعْتُ ابْنَ عَبَّاسٍ، يَقُولُ أَنَا مِمَّنْ، قَدَّمَ النَّبِيُّ صلى الله عليه وسلم لَيْلَةَ الْمُزْدَلِفَةِ فِي ضَعَفَةِ أَهْلِهِ .
also referenced under: Hadith 3032 (Reference) & Book 24, Hadith 0 (In-Book)