﴿ فَعَقَرُوا۟ ٱلنَّاقَةَ وَعَتَوْا۟ عَنْ أَمْرِ رَبِّهِمْ وَقَالُوا۟ يَٰصَٰلِحُ ٱئْتِنَا بِمَا تَعِدُنَآ إِن كُنتَ مِنَ ٱلْمُرْسَلِينَ ﴾

“And then they cruelly slaughtered the she-camel and turned with disdain from their Sustainer's commandment, and said: "O Salih! Bring about that [punishment] with which thou hast threatened us, if thou art truly one of God's message bearers!"”

Please check ayah 7:78 for complete tafsir.