It was narrated Abbas said:

"I was one those whom the Prophet sent ahead on the night of Al-Muzdalifah among the weak ones of his family."

أَخْبَرَنَا مُحَمَّدُ بْنُ مَنْصُورٍ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ كُنْتُ فِيمَنْ قَدَّمَ النَّبِيُّ ﷺ لَيْلَةَ الْمُزْدَلِفَةِ فِي ضَعَفَةِ أَهْلِهِ .