成唯識論演祕 4.451

4.451

答：一解雖無，有深專義，有定無失。諸師上下或云別緣，或說緣一，准此應悉。

Answer: Although it lacks the conception of singleness, it has the meaning of profound absorption; having concentration is without fault. Various masters throughout either say it separately apprehends or say it apprehends oneness; one should understand this accordingly.