Sahih al-Bukhari, Hadith 3918 ⓘ
Al-Bara added: I then went with Abu Bakr into his home (carrying that saddle) and there I saw his daughter `Aisha Lying in a bed because of heavy fever and I saw her father Abu Bakr kissing her cheek and saying, "How are you, little daughter?"
قَالَ الْبَرَاءُ فَدَخَلْتُ مَعَ أَبِي بَكْرٍ عَلَى أَهْلِهِ، فَإِذَا عَائِشَةُ ابْنَتُهُ مُضْطَجِعَةٌ، قَدْ أَصَابَتْهَا حُمَّى، فَرَأَيْتُ أَبَاهَا فَقَبَّلَ خَدَّهَا، وَقَالَ كَيْفَ أَنْتِ يَا بُنَيَّةُ
also referenced under: Book 63, Hadith 144 (In-Book) & Volume 5, Book 58, Hadith 256 (USC-MSA)