觀無量壽佛經疏 2.83

2.83

問曰：「十方諸佛斷惑無殊，行畢果圓亦應無二。何以一種淨土，即有斯優劣也？」

Question: For all buddhas of the ten directions, their cutting off of delusions is not different, and their practice having ended, their fruit being complete, there should likewise be no distinction. Why is it that, among the same pure lands, there are such superior and inferior ones?