How many Mahler's symphonies are accompanied by chorus?

Gustav Mahler composed a total of ten symphonies, of which two are accompanied by chorus: Symphony No. 2, known as the "Resurrection Symphony," and Symphony No. 8, often referred to as the "Symphony of a Thousand." Both works feature large vocal and choral forces, with the Second Symphony focusing on themes of life, death, and resurrection, while the Eighth Symphony celebrates the universality of the human experience.