Salih was sent to Thamud, who carved homes into the mountains. They asked him for a sign and were given a she-camel, with one instruction: leave her alone, and take turns at the water. They hamstrung her instead, and were given three days.
Houses cut out of rock
Thamud were skilled and secure. The Quran says they were carving from the mountains, houses (7:74), and again, And you carve out of the mountains, homes, with skill (26:149). They had gardens and springs and crops.
Salih came from among them — their brother Salih (7:73) — with the same message the others brought, and he reminded them of what they had already been given.
The camel, and one instruction
They asked for a sign. What they were given was a she-camel, and the instruction attached to it was almost nothing: This is the she-camel of Allah, to you a sign. So leave her to eat in Allah's land, and do not touch her with harm (7:73).
Elsewhere the arrangement is spelled out: the water was to be shared, a drink for her on a known day and a drink for them (26:155).
That is the whole test. Not a hardship, not a sacrifice — take turns, and leave the animal alone. Children find this genuinely surprising, and the surprise is the point of telling it.
What they did, and the three days
They hamstrung her (7:77, 26:157). The Quran records what they said next: they told Salih to bring on what he had threatened them with, if he were truly one of the messengers.
He told them to enjoy themselves in their homes for three days — that is a promise not to be denied (11:65). Then the cry took them, and they lay lifeless in their homes (7:78, 11:67).
And once more the Quran notes who was saved: Salih and those who believed with him, by a mercy from Allah (11:66).
The one idea to leave a child with
The test was not hard. Share the water, and leave the camel alone. Most of what any of us is actually asked to do is that size, and it still has to be done.
What age is this story for?
Six upwards for the camel and the taking turns. By about nine a child can be asked the better question: why would people who had everything refuse to share water with an animal? That question is the reason the story is told.
A note on the details
The she-camel attracts a great deal of added description — how she emerged from the rock, her size, how much she drank. The Quran gives almost none of it. It says she was a sign, that she was to be left alone, and that the water was shared.
The same goes for the man who hamstrung her. The Quran says in one place that they called their companion and he took her and hamstrung her (54:29), and elsewhere uses the plural, because they were all in it. Names and backstories for him come from later material.
What was the she-camel of Salih?
A sign given to Thamud when they asked for one. They were told to leave her to graze freely, not to harm her, and to share the water with her on alternate days (7:73, 26:155).
Why was Thamud punished?
They hamstrung the she-camel after being told plainly to leave her alone, then challenged Salih to bring on the punishment (7:77). They were given three days first (11:65).
Where did Thamud live?
The Quran describes them carving homes into mountains (7:74, 26:149) but gives no modern location. It is better to leave it there than to attach the account to a particular site.
Was Prophet Salih from Thamud?
Yes — the Quran calls him “their brother Salih” (7:73), meaning he was one of them.