Who is Li Bai's "seeing friends off" addressed to?

Li Bai's poem "Farewell to Friends" is full of emotion because of farewell to Du Fu. "Needless to say, I am willing to turn." ("On the East Tour in May"). Li Bai made such a confession when he first arrived in Yanzhou. In order to realize his ideas, he is willing to wander around like a floating grass. Farewell to Friends and Farewell to Du in Dongshimen, Luxian County are works of the same period and are sequels. The title of the main poem has the words "farewell to Du Fu", and the sequel has the words "farewell to friends". This poem seems to be the work of other friends in Notes on Chronology of Li Bai's Complete Works and Notes on Li Bai's Complete Works. There is a poem before and a poem after. The two are related and poetic. A closer look at their poems shows that they have been getting along for a long time and know each other well. Du Li's party is by no means limited to the time from Liang Song Tianbao's three-year party to Shimen's party next autumn. The earlier party suddenly fell on the researchers. According to the new theory, Li Bai and Du Fu became attached at the latest in the 24th year of Kaiyuan, when Li Bai lived in Yanzhou and Du Fu's relatives lived in his father Du Xian's official residence, and both of them had works written in Yanzhou at the same time. I have studied these works for several years because I know I am in Donglu.