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fa-ʿaqarū n-nāqata wa-ʿataw ʿan ʾamri rabbihim wa-qālū yā-ṣāliḥu ʾtinā bi-mā taʿidunā ʾin kunta mina l-mursalīna
So they hamstrung the She-camel and defied the command of their Lord, and they said, ‘O Salih, bring us what you threaten us with, if you are one of the apostles.’
— Ali Quli Qarai
Surah Al-‘A’raf, Verse 77
77. "So they hamstrung the She-camel and revolted against their Lord's commandment, and they said: ' O' Salih! bring us that you promise us to, if you are of the messengers '."
The arrogant wealthy persons among Salih's people became despair of weakening the foundations of the Faith of masses of people who were faithful. On the other side, they saw that, with the existence of the 'she-camel' that was counted as - Salih's miracle, their hostile plots were remained useless. Then, they decided to destroy the 'She-camel'. Before anything else, they hamstrung her and, disobeying Allah’s command, they killed her. The verse says:
They did not suffice to this vice, but they came to Salip and vividly told him to bring them Allah’s punishment as soon as possible, if he was the messenger of Allah.
This word, in fact, was making a kind of fight against Salih in order to weaken the spirit of both -Salih and the believers.