What is the evidence for naming Surat Muhammad as "Al-Qital," Surat Al-Isra as "Bani Israel," and Surat Ghafir as "Al-Mu'min"?

Surat Muhammad was named "Al-Qital" (The Fighting) because the word "qital" and its legitimacy are mentioned in it. It is also called Surat "Alladhina Kafaru" (Those Who Disbelieved) because it begins with this phrase. Its most famous name is "Muhammad."

Surat Al-Isra was named Surat Bani Isra'il (Children of Israel) because it mentions accounts of the Children of Israel.

Surat Ghafir was named Surat Al-Mu'min (The Believer) because it contains the story of the believer from among Pharaoh's people, as in the Almighty's saying: "And a believing man from among the people of Pharaoh, who concealed his faith, said, 'Will you kill a man because he says, 'My Lord is Allah'?"

It is worth noting that the surahs of the Holy Quran may have several names, but they are known by some of them.