פירוש על מלכים ב 20:4

Had not gone out of the … courtyard, etc. The Holy One, Blessed Is He, hurried to notify him about his cure before the rumor would spread in the city that he has been sentenced to death, as stated in [Talmud] Yerushalmi.⁴Maseches Sanhedrin 10:2. ⁵The כתיב [=it is written] is העיר, the city. The Gemara in Maseches Eiruvin 26a explains that the inner court behind the king's palace was the size of an average city.—Radak