What is the ruling if a worshipper intentionally lags behind the imam?
Machine translationRead the Arabic original
The questioner : The one who precedes his imam is measured by the one who lags behind him.
The Shaykh : As for lagging behind, it is said: Yes. If he lags behind intentionally until he separates from the imam in a pillar of the prayer, his prayer is invalid. If he catches up with the imam in his pillar, his prayer is not hidden.
The questioner : The imam stands up due to a sudden event, and he is a trader, until he stands up for the recitation.
The Shaykh : Yes, the prayer is not established, but it is said that this is contrary to what is best, because he did not lag behind in a bow. If the imam bowed and then stood up after his bowing, we said that this is a clear deviation.
The Shaykh : As for lagging behind, it is said: Yes. If he lags behind intentionally until he separates from the imam in a pillar of the prayer, his prayer is invalid. If he catches up with the imam in his pillar, his prayer is not hidden.
The questioner : The imam stands up due to a sudden event, and he is a trader, until he stands up for the recitation.
The Shaykh : Yes, the prayer is not established, but it is said that this is contrary to what is best, because he did not lag behind in a bow. If the imam bowed and then stood up after his bowing, we said that this is a clear deviation.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 442 - ما الحكم إذا تعمّد المُصلّي التأخر عن الإمام؟ قواعد ابن رجب - ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.