 He also notes that there is little discussion in the early buddhist texts about the metaphysical nature of nirvana, since they seem to hold that metaphysical speculation is an obstacle to the goal.Kasulis mentions the "Malunkyaputta sutta" which denies any view about the existence of the Buddha after his final bodily death, all positions (the Buddha exists after death, does not exist, both or neither) are rejected.Likewise, another sutta (AN II 161) has Sāriputta saying that asking the question "is there anything else?"