Musnad Ahmad 1107:3

Husayn ibn Muhammad narrated to us, Shayban narrated to us, from ‘Abd al-Malik, from ‘Umar ibn ‘Abd al-Rahman ibn al-Harith ibn Hisham, that he said: Abu Basrah al-Ghifari met Abu Hurayrah while he was coming from al-Tur. He said: "From where have you come?" He said: "From al-Tur; I prayed in it." He said: "Had I caught you before you traveled to it, you would not have traveled. Indeed, I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: 'Do not undertake a journey except to three mosques: the Sacred Mosque, this mosque of mine, and al-Aqsa Mosque.'"