Musnad Ahmad 27:508

Marwan ibn Mu'awiyah al-Fazari narrated to us, 'Abd al-'Aziz ibn 'Umar ibn 'Abd al-'Aziz informed us, from Isma'il ibn Jarir, from Qaza'ah, who said: 'Abdullah ibn 'Umar said—and he had sent me on an errand for him—: "Come, so that I may bid you farewell just as the Messenger of Allah (may Allah bless him and grant him peace) bade me farewell when he sent me on an errand for him." He took my hand and said: "I entrust to Allah your religion, your trust, and the finality of your deeds."