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 ﷺ لَيْلَةَ الْمُزْدَلِفَةِ فِي ضَعَفَةِ أَهْلِهِ .