Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) relates: I went with Abu Bakr (may Allah be pleased with him) when he first arrived in Madinah, and Aishah (may Allah be pleased with her) was lying down, afflicted with fever. Abu Bakr (may Allah be pleased with him) came to her and said: "My daughter! How are you?" and he kissed her cheek.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19601