"I have time right now. If you want to come over, just come to the same place as last time. Now that I'm an old man with nothing much to do every day, you can keep me company for a chat when you come over."
"Alright, Mr. Hu, I'll drive over from the hospital now." Xiao Yifei hung up the phone, asked the director for leave, though asking for leave as a doctor nowadays is quite difficult. Unless there's an unavoidable reason for leave. For example, if you're truly unwell and can't hold on, or if something important happens at home.
Generally, the director wouldn't grant leave easily, but when you mention you're going to visit an old master, the director didn't hesitate at all and allowed Xiao Yifei to go. The director even said at last, "He's a wonderful doctor, you should learn from him well."