Musnad Ahmad 27:405

Yazid narrated to us, Jarir ibn Hazim informed us, and Ishaq ibn Isa said: Jarir ibn Hazim narrated to us, from al-Zubayr ibn al-Khirrit, from al-Hasan ibn Hadiyah, who said: I met Ibn Umar—Ishaq said:—and he said to me: "From whom are you?" I said: "From the people of Oman." He said: "From the people of Oman?" I said: "Yes." He said: "Shall I not tell you what I heard from the Messenger of Allah, may Allah bless him and grant him peace?" I said: "Yes." He said: "I heard the Messenger of Allah, may Allah bless him and grant him peace, say: 'I indeed know a land that is called Oman; the sea splashes against its side'—and Ishaq said: 'its vicinity'—'the Hajj from it is better than two Hajj from elsewhere.'"