維摩經略疏 4.38

4.38

「若能如是坐者，佛所印可」，三、結成真宴坐義。若身子能趣佛慧，此之六種即是究竟宴坐，為佛所印，豈敢呵彈言不必也？

"If one can sit like this, it is what the Buddha endorses" is third, concluding the meaning of true quiet sitting. If Śāriputra were able to progress toward the Buddha's wisdom, these six kinds would be the ultimate quiet sitting, endorsed by the Buddha; how would anyone dare to rebuke and berate him, saying "not necessarily"?