成唯識論述記 6.140

6.140

述曰：此欲等五緣四境時，或時起一於所樂境，唯起於欲。境非串習，故無念起；境不決定，故無勝解；非所觀境，故無定、惠。此所樂境既如是簡，次餘三境准此可知。

The Commentary states: When these five—desire and so forth—take the four objects as conditions, sometimes one arises: toward an agreeable object, only desire arises. Since the object has not been repeatedly practiced, no mindfulness arises; since the object is not determined, there is no resolve; since it is not an object of contemplation, there is neither concentration nor wisdom. Since this agreeable object is distinguished in this way, the remaining three objects can be understood by analogy.