The Mahabharata, "Asthama" refers to Ashwatthama, the son of Dronacharya

the Mahabharata, "Asthama" refers to Ashwatthama, the son of Dronacharya, who was one of the key warriors in the Kurukshetra war. After the war, Ashwatthama, filled with rage over the death of his father, unleashed the Narayanastra and later, in a desperate act, used the Brahmastra, a powerful weapon. He aimed it at the Pandavas, but Krishna intervened, protecting them. Ashwatthama's Brahmastra was redirected to Uttara's womb, killing her unborn child. For this act, Ashwatthama was cursed by Krishna to roam the earth for eternity, suffering from wounds that would never heal.