It has been traditionally thought that Shandao 善導 understood that a person who slanders the law of Buddha can nevertheless be accepted into the Pure Land because rebirth in a far-off land is described in the Larger Sukhāvatīvyūha 無量寿経.
If this is so, however, it follows from the above that Shandao acknowledges the rebirth into the Pure Land of a person who questions the law of the Buddha. This would result in a fluctuation of the meaning of faith.
In order to avoid this problem, a more reasonable understanding would be that Shandao, focusing on a doctrine in the Guan Wuliangshou jing 観無量寿経 that those destined for the lowest birth of the lowest level can be saved by eliminating sins accumulated over eight billion kalpas through chanting the name of Amitābhā Buddha, concluded that a person who slanders the law of Buddha can be reborn in the Pure Land.
