What are the poems in Wang Bo's poems that express encouragement to his bosom friends?

Wang Bo was a famous poet in Tang Dynasty in China. The most famous of his farewell poems is "Farewell to Vice Governor Du for his post in Shu". The whole poem is as follows:

Through the wall of Sanqin and the fog of five rivers, we two officials said goodbye and parted ways.

However, when China keeps our friendship and heaven is still our neighbor, why do you wander at the fork in the road with the children holding towels?

Among them, "However, when China holds our friendship, heaven is still our neighbor" is a famous sentence widely quoted as saying goodbye to friends.