question #1 Sahih Muslim 605b, Book 5, Hadith 202 : What actions did the Prophet (ﷺ) take when he realized he needed to perform ghusl before leading the prayer?

Iqama was pronounced. ant the people had formed themselves into rows. The Messenger of Allah (ﷺ) came out and stood at his place, and then pointed out with his hand that we should stand at our places. He then went away and took a bath and water trickled from his head and then led them in prayer.