Musnad Ahmad Hadith 22963

It is narrated from Abu Buraidah Aslami (may Allah be pleased with him) that one day I went out walking and saw that the Noble Prophet (ﷺ) had turned his face to one side. I thought perhaps he was going to relieve himself, so I turned aside to go away. The Noble Prophet (ﷺ) saw me and gestured towards me. When I reached the Noble Prophet (ﷺ), he took my hand and we both started walking to one side. Suddenly, we came near a man who was praying and performing many bowings and prostrations. The Noble Prophet (ﷺ) said, "Do you think he is a show-off?" I replied, "Allah and His Messenger know best." The Noble Prophet (ﷺ) let go of my hand, brought both his palms together, raised them to the level of his shoulders and lowered them, and said three times, "Make moderation obligatory upon yourself, for whoever is harsh in matters of religion is overcome."