Surah Al-Qamar, Verse 30

Tafsir of 54:30

The Story of Thamud Allah states here that the people of Thamud denied their Messenger Salih, فَقَالُواْ أَبَشَراً مِّنَّا وَحِداً نَّتَّبِعُهُ إِنَّآ إِذاً لَّفِى ضَلَلٍ وَسُعُرٍ (And they said: "A man, alone among us -- shall we follow him Truly, then we should be in error and distress!") They said, `We would have earned failure and loss if we all submitted to a man from among us.' They were amazed that the Reminder was sent to him alone among them, and therefore, accused him of being a liar, بَلْ هُوَ كَذَّابٌ أَشِرٌ (Nay, he is an insolent liar!), means, he has tresspassed the limits in his lies. Allah the Exalted responded, سَيَعْلَمُونَ غَداً مَّنِ الْكَذَّابُ الاٌّشِرُ (Tomorrow they will come to know who is the liar, the insolent one!), thus warning and threatening them and delivering a sure promise to them, إِنَّا مُرْسِلُواْ النَّاقَةِ فِتْنَةً لَّهُمْ (Verily, We are sending the she-camel as a test for them.) To test and try the people of Thamud, Allah sent to them a superb, pregnant female camel that emerged from solid rock, according to their request, so that it would become a proof against them from Allah, the Exalted.…

Source: Ibn Kathir (Abridged)