Among some Zoroastrians, it is believed that Chak Chak is where Nikbanou, the second daughter of the Iranian king Yazdegerd III, was cornered by the Rashidun army in 640 CE, during the Arab conquest of Iran. Fearing that she would be captured, she prayed to Ahura Mazda for protection, prompting the mountain to miraculously open up and provide her with shelter.[3]

Notable features of Chak Chak include the mountain's ever-dripping spring, which are said to be tears of grief that are shed in remembrance of Nikbanou.