Pharaoh:and Moshe have an ambitious conversation. Pharaoh seems ready to acquiesce to Moshe's request. But, Moshe seems to change the request and Pharaoh has some very bad news about the future of the Jewish nation.

Sources:

Parshas Bo Perek 10 Pessukim 7 - 11

Commentary of Rashi on Possuk 10

Midrash Rabba Shemos Parsha 13 Perek 5

Commentary of Baal Haturim on Possuk 8

Midrash Rabba Esther Psichta Perez 7

Commentary of Maharal Ohr Chodosh on the Midrash

Likkutei Sichos Volume 16 page 119