‏فضائل الصحابة‏ : Hadeeth No:6028 Ubaidullah b. Mu'adh reported it on the authority of his father Shu'ba with the same chain of transmitters and he made this addition. He made a mention of these two names but I do not know whose name he mentioned first....

‏الحج : Hadeeth No:2882 'Ataa reported that 'Urwa b. Zubair (Allaah be pleased with him) had informed him (this): I and Ibn 'Umar were reclining against the (wall) of the apartment of A'isha and we were listening to the sound produced by the brushing of her teeth. I said Abu Abd al-Rahman (the kunya of 'Abdullah b. Umar), ...