What is this calligraphy about?

The work should be written in the fourth poem "Five Drinks for Wine" by Bai Juyi, a poet in the Tang Dynasty. "A hundred years old is not strong for a long time, but a few days can be a mystery in spring. Don't refuse to get drunk when you meet, and listen to the fourth sound of yangguan. " The signature is "Poems by Xia Changan Bird, a Boxer" by Tang Juyi. However, the poems recorded in this work are wrong. The original text says "a hundred years old can be strong for a few days in spring" and this work says "a hundred years old can be strong for a few days in spring, and how much mystery can there be in a season"; The original text "Never refuse to get drunk when you meet" was written as "Why refuse to get drunk when you meet". Judging from the handwriting, it is very similar to Xue Yuanzhang's works and should be valuable for collection.