Musnad Ahmad 26:498

Abu Mu'awiyah narrated to us, Al-A'mash narrated to us, from Shamir ibn 'Atiyyah, from Mughirah ibn Sa'd ibn al-Akhram, from his father, from 'Abdullah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Do not acquire landed property, lest you become desirous of the worldly life." 'Abdullah then said: "And what is Baradhan? And what is in Al-Madinah?"