question #1 Sahih Muslim 327a, Book 3, Hadith 62 : How did the Prophet Muhammad (ﷺ) demonstrate the method of washing the head during bathing?

The people contended amongst themselves in the presence of the Messenger of Allah (ﷺ) with regard to bathing. Some of them said: We wash our heads like this and this. Upon this the Messenger (ﷺ) said: As for me I pour three handfuls of water upon my head.