Kushul — Kurchalha (12th century) — Khanbilha — Chabalkha — Chaykha — Chergishkha — Begal — Oku — Tovla — Maila (Maig) — Tovbolat — Tembolat — Timirbolat — Bersa (the first preacher of Islam — 1561.)

[3][4] Bersa-Sheikh was born as Duchi into Chechen family of the Kurchaloy [ru] clan (teip)[5] in the village of Guni (located in present-day Vedensky District, Chechenya) in 1561.

[2] Bersa-Sheikh, being still young, went to Dagestan to the aul Kazi-Kumukh, with the purpose of learning Arabic grammar; after a short time, having made great progress, he returned home and lived without distinguishing himself in any particular way.

He received his religious education from the ulema at the tomb of Abu Muslim, who brought the religion (prophet) to Dagestan from Arabia in the eighth or ninth century and was honoured as a saint.

The influence of Sheikh Bersan was so strong that the Chechens themselves threw those who did not submit to his teachings and did not want the luxuries of the other world down from the high cliff near the village of Gunoy into the deep gorge of Djordje Bero, from where they had to plunge deeper into dzhegennem (hell).Umalat Laudayev, wrote «when Islamism was finally established among the Chechens, a certain Bersa (Bersan) of the Kirchala family stood at the head of the people; he had influence among the people and was called imam and sheikh».

[7] The Chechen historian Yavus Zaindievich Akhmadov notes that in the immediate neighbourhood of Nakhch-Mokhk beyond the Aksai River was the Okotsk land (possession of the Isherimovs in the 16th century, the Aukhov society), whose population was the first of all Nakhs to embrace Islam.