Is the six-character mantra Buddhism or Taoism?

Hello! The six-character mantra of Buddhism, also known as the Six-character Daming Mantra, means "Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum, Hum. Pronunciation is translated into "(non-hòng), (mā), (nρ), (bā), (mēi),. This is the most revered spell in Tibetan Buddhism. Tantric believes that this is the basic mantra of Tantric Lotus Department, that is, the mantra of Guanyin in Lotus Department, so it is called the six-character mantra. Sanskrit or Tibetan letters (temples in Mongolia also use Basiba characters) are often used for writing, painting and carving on eaves, ceilings, doorframes, large and small religious instruments, rocks and building slates.