The Prophet ﷺ would not visit a sick person until three days had passed.
حدثنا هشام بن عمار حدثنا مسلمة بن علي حدثنا ابن جريج عن حميد الطويل
كان النبي ﷺ لا يعود مريضا إلا بعد ثلاث
No references are available.
[Its chain is extremely daif] See hadith no. 351 for its defect, though it has other defects besides. Abu Hatim said, This hadith is false and fabricated, and it has a corroborating narration that is also fabricated and cannot be relied upon. It is found in Tabarani's Awsat, and it contains Nasr bin Hammad, who is a liar, as Ibn Main, may Allah have mercy on him, said.