Abu Dawud
General Behavior
Book Number: 036 / Hadith Number: 5203
Narated By Al-Bara' ibn Azib : I went in with AbuBakr when he had newly come to Medina and he found his daughter 'Aisha lying down afflicted with fever. AbuBakr went to her, and saying: How are you, girlie? kissed her on the cheek.