Sunan Ibn Majah Book 25, Hadith 108
“Hajj is Jihad and ‘Umrah is voluntary.”
“If I go quickly between Safa and Marwah, that is because I saw the Messenger of Allah (ﷺ) going quickly, and if I walk that is because I saw the Messenger of Allah (ﷺ) walking, even though I am an old man.”
“I heard ‘Abdullah bin Abu Awfa say: ‘We were with the Messenger of Allah (ﷺ) when he performed ‘Umrah. He performed Tawaf (around the Ka’bah) and we performed Tawaf with him. He prayed and we prayed with him, and we were shielding him from the people of Makkah lest anyone harm him.’”