A--- 第一：它会使整个礼拜无效，例如在晨礼中增加第三个拜（Rak'ah），在昏礼中增加第四个，在晌礼中增加第五个；或者减少其中的一个拜（Rak'ah）。

A--- First: it nullifies the whole act of worship such as adding a third Rak'ah to the Fajr Prayer, a fourth one to the Maghrib, or a fifth to the Zuhr Prayer. Or, such as decreasing a Rak' ah thereof.

其次：虽然它是（Bid'ah，即创新），但这并不会使该崇拜行为失效。

Second: it does not nullify the act of worship though it is (Innovation)

……本身实际上是无效的。比如有人在应当洗涤的肢体上增加第四次洗涤，这样的人。先知（愿主赐福他并使他平安）并没有说这样做会使礼拜无效，而是说："凡在此之外增加的，他确实做得不好，越了界，并且做了错事。"（艾布·达五德、伊本·马哲辑录）

itself is basically nullified. Such as the one who adds a fourth time of wash to the organs to be washed in Ablution. The Prophet (Peace be upon him) did not say it is nullified, but said: "Whosoever adds to this, he certainly did badly, transgressed and did (something) wrong." (Abu Dawud and Ibn Majah)