Is it permissible for a man to kiss his adult daughter, whether she is married or not, and on which part of the body, and what is the ruling on her kissing him?

It is permissible for a man to kiss his daughter, whether young or old, on the cheek without lust, just as Abu Bakr Al-Siddiq did with his daughter Aisha. It is preferable to avoid kissing on the mouth, as it may arouse lust. Similarly, it is permissible for a daughter to kiss her father on his nose or head without lust. As for kissing with lust, it is forbidden for everyone, as a means of blocking the path to temptation.