If a person is able to pray with presence of heart during war, but he is unable to perform wudu'?
Machine translationRead the Arabic original
The questioner : If a person is able to pray with presence of heart during war, but he is unable to perform ritual purity, i.e., wudu'.
The Shaykh : Yes, he prays. If tayammum is possible, he does it; if it is not possible, he prays without it.
The questioner : And he does not delay it beyond its time. Yes.
The Shaykh : Except for those that are combined; it is better to delay them. It is better to delay them if the intention is regarding ritual purity. But if he is unable to perform ruku' and sujud and the like, then as I told you, if they are combined with the prayer that follows, he must combine them.
The Shaykh : Yes, he prays. If tayammum is possible, he does it; if it is not possible, he prays without it.
The questioner : And he does not delay it beyond its time. Yes.
The Shaykh : Except for those that are combined; it is better to delay them. It is better to delay them if the intention is regarding ritual purity. But if he is unable to perform ruku' and sujud and the like, then as I told you, if they are combined with the prayer that follows, he must combine them.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 1484 - إذا استطاع الإنسان في الحرب أن يصلي مع حضور القلب لكنه لا يستطيع الوضوء؟ ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.