四分律行事鈔資持記 2.1079

2.1079

次重釋中。標云約緣者，即上七緣。文中但釋五種，三七易解故。令下二句，出重廣之意。

In the subsequent "Re-explanation": Heading it as "with reference to conditions" refers to the seven conditions above. The text explains only five kinds, because the third and seventh are easy to understand. The two sentences starting with "Causing..." explain the intention behind the repeated expansion.