复次，须菩提！菩萨于法，应无所住，行于布施。所谓不住色布施，不住声香味触法布施。须菩提！菩萨应如是布施，不住于相。何以故？若菩萨不住相布施，其福德不可思量。须菩提！于意云何？东方虚空可思量不？……须菩提！菩萨无住相布施，福德亦复如是，不可思量。须菩提！菩萨但应如所教住。
逐句解释
菩萨于法，应无所住，行于布施
「无所住」是《金刚经》最重要的教义之一，也是禅宗的核心。意思是：做事时，心不要停留在任何地方，不要执着于任何目标或结果。布施就是最好的例子——给出去，但心里不挂碍「我给了」「他收了」「我有多大功德」。
The bodhisattva should give without the mind dwelling anywhere
This phrase — 'without the mind dwelling anywhere' (无所住) — is one of the most famous in all Buddhist literature. The sixth Zen patriarch, Huineng, is said to have attained awakening upon hearing just this line. It points to a way of acting that is completely free and open: you do what needs to be done, but the mind does not park itself on the act, the outcome, or any idea of self. Giving is the most accessible example. We normally give and then feel good about giving — we have 'landed' on the act. The sutra asks: can you give and let it pass through, like wind through an open window?
不住色布施，不住声香味触法布施
色声香味触法是「六尘」——我们通过眼耳鼻舌身意所感受到的六种外境。不住于这六尘布施，意思是：给出时，不因为对方外貌好看而给，不因为他说了什么动听的话而给，不因为任何感官上的刺激而给。布施要出于纯粹的慈悲，而不是感官的驱动。
Give without attachment to form, sound, smell, taste, touch, or mental objects
The six sense objects (六尘) are the full range of what we experience through our senses and mind: sights, sounds, smells, tastes, physical sensations, and mental impressions. To give 'without dwelling' on any of these means: don't give because someone looks deserving, or says the right thing, or makes you feel moved in a particular way. Don't give to get a feeling. Don't give to be seen giving. Don't give because it will make you feel good afterwards. Give because giving is the right response — and then release it completely.
若菩萨不住相布施，其福德不可思量
当一个人能够真正做到无所住的布施时，他的福德是无法用数字衡量的。为什么？因为有附带条件的给予，福德是有限的——它受限于那个条件。但无我、无执着的给予，就像虚空一样，无边无际，无法计量。
If a bodhisattva gives without dwelling on marks, their merit is immeasurable
The Buddha makes an extraordinary claim here: selfless giving generates unlimited merit, while self-conscious giving generates only limited merit. Why? Because conditional giving is bounded by its conditions — it produces a result proportional to its ego-content. But giving that is completely free of self has no limiting boundary. The Buddha then uses the analogy of space itself: can you measure how large the sky is to the east? To the west? In all directions? No. In the same way, merit from non-attached giving cannot be measured. This is not mystical hyperbole — it is a precise teaching about the relationship between ego and limitation.
总结 · Summary
第四章的核心是「无所住」——做任何善事，心不要停留在执着之上。以布施为例：给出去，但不执着于给了什么、给了谁、自己因此有多大功德。这种无我的布施，其福德就像虚空一样无法衡量。因为执着会限制功德，而无我会打开无限。
Chapter 4 introduces the principle of 'dwelling nowhere' — acting freely without the mind latching onto results, appearances, or self-image. Giving is the example: offer without any thought of what you gave, who received it, or what merit you gained. Such selfless giving generates merit as boundless as space itself, because ego is what creates limitation. Remove ego, and the act opens into the infinite.