法華經義記 1.76

1.76

問者又言：「頗有小阿羅漢，故今言大阿羅漢耶？」解言：「羅漢位齊，實無大小，今形七種學人詺為大也。」

The questioner also asked: "Could it be that there are lesser arhats, which is why it now speaks of 'great arhats'?" The explanation states: "The rank of arhat is uniform; in reality there is no greater or lesser. Here they are called 'great' in contrast to the seven classes of learners."