Is it permissible to pray in a mosque with carpets while wearing slippers?

The questioner : The other question, meaning the question of whether it is permissible to pray in a mosque that has carpets while wearing one's shoes or slippers?

The Shaykh : As for the prayer, if one prays in this mosque which is carpeted, his prayer is undoubtedly valid. It seems the question is not phrased this way; it should be phrased differently. Rather, the problem arises first from the questioner and second from the translator, but no blame is intended. Just as they say in some colloquial examples, "they make wine from a grape and a dome from a seed," whether we raise it or lower it, the point is that I think the validity of the question is not "Is the prayer valid?"

The questioner : No, this...

The Shaykh : Allow me, I have answered you in any case. The question is: Is it permissible for a Muslim to enter a mosque carpeted with luxurious carpets, especially in Saudi Arabia, which has recently joined those who are fit for such decorations, and so on? Is it permissible to pray in one's slippers in that mosque? With one condition: that he does not cause fitnah (trial, discord or temptation) between himself and his Muslim brothers. Because the issue of permissibility has two aspects: one aspect relates to the validity of the worship, so he may pray in his slippers in the holiest place. This reminds me of the incident that occurred between Abu Musa and Abdullah ibn Mas'ud (may Allah be pleased with them both), where "he was in a gathering and the time for prayer arrived, so Ibn Mas'ud brought Abu Musa al-Ash'ari forward to lead the prayer. He was wearing slippers, so he took them off. Abu Musa said: 'Are you in the Sacred Valley? Are you taking off your slippers in the Sacred Valley?'" Meaning, your Shari'ah is not the Shari'ah of the Torah. The Torah has this ruling that Musa (peace be upon him) was commanded: . So if a Muslim enters a mosque or a house carpeted with this carpeting, his prayer is valid, and there is no blemish on it from this perspective. But if he enters the mosque and causes disturbances, problems, and fitnah, then it is not permissible for him to pray, and he must, in this case, take off his slippers and pray barefoot. That is the ruling.