Once upon a time, Korkyt Ata rode his Zhelmaya, carrying his black kobyz, and traveled around the country. He showed the way to the lost, advised those in need, and was a visionary who predicted the future. He conveyed what he saw and felt through the melodies of the kobyz, accompanied by its rich sound.

One day, Korkyt saw a saint in his dream, with a white beard reaching his waist and holding a white staff. The saint gave him a revelation:
– Oh, Korkyt, if you never speak of death, death will never come to you, – he said. Korkyt woke up, feeling as if he had heard these words in reality. Thinking, 'This must be another trial from Tengri,' he took the saint's words to heart.

Years passed, and days slipped by. Korkyt, never forgetting the saint's testament, and never speaking of death, continued to travel the lands, playing his kobyz.

One day, as he was resting, holding the reins of his Zhelmaya, he saw people from a village struggling to catch a runaway bull. Even though all the villagers, young and old, gathered, they couldn't subdue the wild bull. So Korkyt mounted his Zhelmaya and tried to turn the bull back. But the runaway bull didn't submit even to Zhelmaya. He chased it until he was completely exhausted. "Confound it, even if I die, I won't fail to catch you!" he exclaimed, spurring his Zhelmaya. As soon as he uttered these words, the speckled calf turned into a stone and solidified. Before turning into stone, it spoke and lamented thus:

I myself was black,
Born from black, I was speckled.
My birthplace – Kazaly,
This mountain has become my doom!

Having said this, the speckled calf turned into a stone. At that moment, Korkyt realized that words about death had escaped his lips and regretted it deeply. But spoken words cannot be taken back. Understanding that it was impossible to oppose fate's decree, Korkyt fell into deep sorrow. After that, he spurred his Zhelmaya and wandered to the four corners of the world.

And it is said that this event settled upon Korkyt's kobyz as a kui called "Targyl Tana" (The Speckled Calf).