[Machine] That Abdullah bin Umar used to perform ablution in extreme heat, and he would pass his hands over his armpits without invalidating his ablution.
أَنَّ عَبْدَ اللهِ بْنَ عُمَرَ كَانَ يَتَوَضَّأُ فِي الْحَرِّ فَيُمِرُّ يَدَيْهِ عَلَى إِبْطَيْهِ وَلَا يَنْقُضُ ذَلِكَ وُضُوءَهُ