I saw the Messenger of Allah ﷺ performing ablution. He wiped his head front and back, his temples and his ears once.
رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَتَوَضَّأُ قَالَتْ فَمَسَحَ رَأْسَهُ وَمَسَحَ مَا أَقْبَلَ مِنْهُ وَمَا أَدْبَرَ وَصُدْغَيْهِ وَأُذُنَيْهِ مَرَّةً وَاحِدَةً