Musnad Ahmad 1153:1908

Abu Mu'awiyah narrated to us, he said: Hisham narrated to us, from his father, from Aisha, who said: "The descending at Al-Abtah is not a Sunnah. The Messenger of Allah, peace and blessings of Allah be upon him, only descended there because it was more convenient for his departure, peace and blessings of Allah be upon him."