Sunan Ibn Majah, Volume 4, Book 31, Hadith 3441 (DarusSalam) ⓘ
It was narrated that Anas bin Malik said: “The Prophet went to visit a sick person, and said: ‘Do you want anything? Do you want cake?’ He said: ‘Yes.’ So they looked for some for him.”
حَدَّثَنَا سُفْيَانُ بْنُ وَكِيعٍ، حَدَّثَنَا أَبُو يَحْيَى الْحِمَّانِيُّ، عَنِ الأَعْمَشِ، عَنْ يَزِيدَ الرَّقَاشِيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ دَخَلَ النَّبِيُّ ـ صلى الله عليه وسلم ـ عَلَى مَرِيضٍ يَعُودُهُ قَالَ " أَتَشْتَهِي شَيْئًا أَتَشْتَهِي كَعْكًا " . قَالَ نَعَمْ . فَطَلَبُوا لَهُ .
also referenced under: Hadith 3441 (Reference) & Book 31, Hadith 3567 (In-Book)