法華玄義釋籤 16.35

16.35

論云「衍中明法印」者，是法華前共部所說，小乘法印數復不同，故須料簡。若此經中獨明實相為一法印，故須料簡。

When the treatise says, "Clarifying the dharma seal in the Mahāyāna," this refers to what was taught in the shared texts prior to the Lotus Sūtra; the number of dharma seals in the Hīnayāna is also different, so differentiation is necessary. Since in this sūtra the true character is exclusively clarified as the single dharma seal, differentiation is therefore necessary.