Is the prayer valid while wearing trousers?

The Shaykh : Please, go ahead, there is no harm.

The questioner : Is it permissible to pray in trousers? Is the prayer valid?

The Shaykh : If by praying in trousers you mean whether it invalidates the prayer or makes it valid, the answer is that it is valid and does not invalidate it. However, it is not befitting for a Muslim, in his jurisprudence and his worship and his drawing near to his Lord, to be satisfied with merely escaping the sin and saying, "My prayer is valid," even if its validity is only one percent or ten percent, as we exaggerate now by saying ten percent. As he (peace and blessings be upon him) said: It is not befitting for the effort and jurisprudence of a Muslim to be limited to knowing that this prayer is valid in the sense that the obligation has been lifted from his neck. Rather, he must be careful to perform the prayer in the state where it is as complete as possible. On this basis, we say that the prayer of one wearing trousers is disliked with a prohibitive dislike. I am giving you an example now: a man prays while wearing silk clothing; his prayer is valid, but he is sinful in that prayer. Does this mean the Muslim is satisfied with that and says, "By Allah, this prayer is valid, and the matter is over"? Based on that, compare the outcome of this answer: Muslims should try to get rid of wearing trousers, because without a doubt it is not Islamic clothing. They should wrap themselves in what you call the dishdasha, because it is more covering of the 'awrah. This is the answer to the question.