"It is related that when Sultan Mahmud Sabuktigin [of Ghazna] went to raid Somnath, he saw [Abu Muhammad] in the battle, as he also was coming to [the sultan’s] aid. Thus, at the age of seventy, he went thither with a company of dervishes. When they arrived, the shaykh selflessly waged jihad against the idolaters. One day, the idolaters gained the upper hand, so the army of Islam sought refuge in the woods. Now, [Abu Muhammad] had a senior murid back in Chisht by the name of Muhammad Kaku. [Abu Muhammad] cried out, “O Kaku, [come to our aid]!” Forthwith, Kaku appeared and furiously fought [the unbelievers] until the army of Islam achieved victory. At the same time, the folk of Chisht beheld Kaku take up the mill hopper and begin beating the walls and doors of the mill therewith. When the townsfolk asked him the meaning of [his astonishing deed with the mill hopper], he related this story to them.34 After the conquest of Somnath, Sultan Mahmud, having seen with his own eyes that Abu Muhammad had rendered him aid both inwardly and outwardly, believed more than ever [in the shaykh’s power] and prostrated himself before the shaykh as soon as he arrived."
January 1, 1970
https://en.wikiquote.org/wiki/Moinuddin_Chishti