Who did name Surah al-Isra as Bani-Israel? (As the other name of Al-Isra)?

The seventeenth Surah of the Holy Qur’an is famous as two names. Actually, one of its names is Al-Isra and the other name is well-known as Bani-Israel. I've got 2 queries: 1. Which one is the main name of this Surah? 2. Who named it as Bani-Israel? (As it is famous as Bani-Israel as well)