Musnad Ahmad 27:1315

'Affan narrated to us, he said: Wuhayb narrated to us, 'Abdullah ibn Tawus narrated to us, from his father, that he heard Ibn 'Umar saying at the beginning of his affair: "It does not depart." He said: Then I heard Ibn 'Umar saying: "The Messenger of Allah, may Allah bless him and grant him peace, granted a concession for them."