I saw the Messenger of Allah ﷺ perform ablution. When he reached the stage of wiping his head, he placed his palms on the front of the head. Then he moved them until he reached the nape. He then returned them to the place from where he had started. (Using translation from Abū Dāʾūd 122)
رَأَيْتُ رَسُولَ اللهِ ﷺ يَتَوَضَّأُ فَإِذَا بَلَغَ مَسْحَ رَأْسِهِ وَضَعَ كَفَّيْهِ عَلَى مُقَدَّمِ رَأْسِهِ فَأَمَرَّهُمَا حَتَّى بَلَغَ الْقَفَاءَ ثُمَّ رَدَّهُمَا إِلَى الْمَكَانِ الَّذِي بَدَأَ مِنْهُ قَالَ مَحْمُودٌ قَالَ أَخْبَرَنِي حَرِيزٌ حَتَّى يَرْفَعَ