29:34
إِنَّا مُنزِلُونَ عَلَىٰٓ أَهْلِ هَٰذِهِ ٱلْقَرْيَةِ رِجْزًۭا مِّنَ ٱلسَّمَآءِ بِمَا كَانُوا۟ يَفْسُقُونَ
Indeed, we will bring down on the people of this city punishment from the sky because they have been defiantly disobedient."
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
The Angels went to Ibrahim and then to Lut, may peace be upon them both
When Lut, peace be upon him, asked Allah to help him against them, Allah sent angels to help him. They first came to Ibrahim in the form of guests, so he offered them hospitality in the appropriate manner. When he saw that they had no interest in the food, he felt some mistrust of them and was fearful of them. They started to calm him down and gave him the news of a righteous son born by his wife Sarah, who was present, and she was astonished by this, as we have already explained in our Tafsir of Surat Hud and Surat Al-Hijr. When they brought this news to Ibrahim and told him that they were sent to destroy the people of Lut, he began to speak up for them, hoping to win more time for them so that they might be guided by Allah. When they said, "We have come to destroy the people of this township,"
قَالَ إِنَّ فِيهَا لُوطاً قَالُواْ نَحْنُ أَعْلَمُ بِمَن فِيهَا لَنُنَجِّيَنَّهُ وَأَهْلَهُ إِلاَّ امْرَأَتَهُ كَانَتْ مِنَ الْغَـبِرِينَ
((Ibrahim) said: "But there is Lut in it." They said: "We know better who is there. We will verily, save him and his family except his wife, she will be of those who remain behind.") meaning, one of those who will be destroyed, because she used to support them in their disbelief and wrongdoing. Then the angels left him and visited Lut in the form of handsome young men. When he saw them like that,
سِىءَ بِهِمْ وَضَاقَ بِهِمْ ذَرْعًا
(he was grieved because of them, and felt straitened on their account.) means, he was worried since if he had them as guests then he was afraid for them and what his people might do to them, but if he did not host them, he was still afraid of what might happen to them. At that point he did not know who they were.