大乘入道次第開決 1.105

1.105

集起名心者。若隨相增屬第八識。集諸法種起諸法故。通而言之亦在七識。採集諸業起諸種故。故所積集而為心義。

Regarding "accumulating and giving rise is called 'mind'": if considered according to predominant characteristics, it belongs to the eighth consciousness, because it gathers the seeds of all dharmas and gives rise to all dharmas. Generally speaking, it is also present in the [first] seven consciousnesses, because they gather all karmas and give rise to all seeds. Therefore, taking accumulation as its definition is the meaning of "mind."