His name was Habib bin Malik, and he was a great chieftain of Yemen. Abu Jahl sent a message that Habib Muhammad ﷺ said to the moon on such and such a date: Come here and look at the moon.
Is it broken or not? So Habib bin Malik set out on a journey and reached Mount Abu Qais, where the infidels had demanded that a heavenly miracle be shown here or the moon be split into two pieces...!
My master Hazrat Muhammad Mustafa (peace and blessings of Allah be upon him) came and split the moon into two pieces, and then went back - it is in Khasais al-Kubri that the moon remained in two pieces for an hour and a half...!
Haibib bin Malik saw this and came to Prophet Muhammad Mustafa (peace be upon him) and said:
"It's all right, but tell me what's wrong with my heart...?"
You said:
"You have only one daughter, whose name is Satieha, she is blind, beautiful, lame, deaf and dumb - you are being consumed by her grief from the inside - go, Allah has healed her...!"
As soon as Habib heard this, he ran to his house, and his daughter Satiha opened the door while reciting the word, Habib asked:
"Satiha, who taught you this word...?"
So he told the entire dress of the Holy Prophet Muhammad Mustafa, may God bless him and grant him peace, and said:
"O father, he came, visited me and prayed, and I was also recited the Kalima Tayyaba...!"
Habib went back and became a Muslim after reading the word, and not only became a Muslim, but also took the lead in the service of Islam...!