The tale is related to the theme of the calumniated wife and classified in the Aarne-Thompson-Uther Index as type ATU 707, "The Three Golden Children".
The next time he has to go on a journey, Namtu Haraksin promises to give birth to another boy with golden chest and silver backside.
Some time later, the "three riders of Tomo Ula" visit the city by ship on the way to Badma Khan and a little yellow dog (Namtu Haraksin's son in disguise) appears to them.
The riders meet Badma Khan and tell him about the palace on the island, but Badma's cowives tell them about an evergreen birch tree with 70 nests of birds that sing all year; then about the king of boars, Хадарган (Hadargan), which ploughs the land with its tusks while his subjects harvest the grains to make alcoholic drinks; and lastly about two boys that live in an iron palace on the other side of the Black Sea who play with the mountains and are guarded by a black dog.
[4] Folklorist Elizaveta V. Barannikova [uk] listed "Богатый царь Бадма" as a Buryat variant of tale type 707.
[9] According to Russian folklorist S. Y. Neklyudov, in tales from the Mongolic peoples, the promised wonder children are described to have a golden chest, often combined with a silver backside.
[10] Russian scholarship has noted that in Buryat tales and üligers, children born with golden breast and silver backside often show supernatural abilities and functions akin to a cultural hero.
[11] In a tale from the Buryat titled "Младшая ханша и ее Златогрудый сын" or "Хаанай бага хатан Алтан сээжэтэй хубуун хоёр" ("The youngest princess and her golden-breasted son"), a khan with two wives decides to marry a third time.
One day, before going to war, he asks what his wives will present him upon his return; the third promises to give birth to a boy with golden breast and silver backside.
The khan returns and tries to open the door, so he announces he will beat the drums to summon his people, but the two queens dissuade him.
Each of the three queens promise a grand feat when he returns: the first to create a seamless pair of boots, the second to sew a shirt with a louse skin, and the third to give birth to a son "with breast of gold and buttocks of silver".
The king returns and, seeing that no son was born, blinds the third queen, cuts off her hand, breaks a leg and exiles her with the cow.
[14][15] Professor B. Rintchen collected an epic titled Khan Tschingis from a local Mongol bard named Onoltu.
He noticed in his analysis that its "central theme" was The Calumniated Wife: in the story, the queen promises to give birth to a boy "with breast of gold and buttocks of silver" (altan čegejǐtei mōnggün bōgsetei).
In this tale, in the Shinekhen Buryat language, A Boy with a Golden Breast and Silver Buttocks, before a king goes to war, he asks his three wives what they will do for him when he returns.
[17] In a late 19th article, Russian ethnographer Grigory Potanin recalled a similar tale he had heard from a Khalkha Mongol source.
One day, a creature named mus breaks into her house and devours her parents, but she escapes with the help of a horse.
The next year, war erupts, and the khan departs with his wife's magical horse to fight, while she stays and gives birth to eleven sons with golden breast and silver backside.
The previous Shulma wives intercept a letter and falsify it to tell the khan his wife gave birth to 11 puppies.
Later, the elder son shapeshifts into a sparrow to spy on his father's court, where the previous 500 Shulma wives comment on strange wonders: a beautiful woman that comes out of the water, and on a certain beach 10 youths with golden breast and silver backside come out of the sea to eat food on their golden plates.
[22] In another Kalmyk tale, "Кевун бээдлтэ куукн" ("Сказка про девушку с мужским поведением" or "Девушка, похожая на юношу"; "A girl dressed as a boy"), the titular heroine shows great skills at hunting and horse-riding, wearing masculine clothes when taking the herd to graze.
B. Goryaeva, in another Buryat tale titled "Педрəч хан" ("Pedrech Khan"), the third sister promises to bear twins, a boy with golden chest and a girl with silver backside.
[25] Potanin also republished a tale collected by G. Adrianov in Mongolia with the title "Кэрэк-Кирвэс-Хэмэрэ-мэргэн" or "Хэрэкъ-Кирвэсъ Хэмрэ мергенъ" ("Kerek-Kirves-Khemere-mergen").
The titular hero, Kerek-Kirves-Khemere-mergen, turns into a bird and flies to his father's court to spiy on him, and each time learns of fantastical objects.
Next, the khan claims that, if the hunter is really his son, he shall have a horse and a weapon made by his own ironsmiths ("долонарык-дархан") or from a person named Толонъ Арыкъ Дархана ("Tolon-Arik-Darkhana").
Lastly, he tells his ambassadors about the daughter of a creature named Убиртых-Хормозда (Ubirtykh-Khormozda), a maiden called Тэмэнъ ногонъ тэнгэрлеръ кызу ("Temen nogon tengerler kizu"), whom the boy should have for bride.
He spies on their conversation: the elder sister promises that, if she marries Budjin-Dava-Khan, she will prepare a 9 course meal for 500 people with a single egg; the middle sister that, with the wool of a single she-goat, she can weave a carpet large enough for the Khan and his retinue, and the youngest promises to bear him a son of gold and a girl of silver.
[29] In a late-19th century article, Grigory Potanin argued that an Asian version of the Epic of King Gesar might have had elements that appear in these tales: Geser's father, a king named Гумен-хан (Gumen-Khan) listens to the promises of three sisters; he marries the third sister, who promises to bear him a hero named Geser.