Don't wait for the last minute to say you believe 10:90-93
10:90 We brought the Children of Israel through the sea, and Pharaoh and his legions pursued them arrogantly and frantically. But as he was drowning he cried out, '(Now) I believe that there is no god except He in whom the Children of Israel believe. I am of those that surrender (Muslims).'
10:92 We shall deliver you (Ramsis II) with your body this day, so that you may be a sign to those after you. Indeed many people pay no heed to Our signs!
10:93 (Thereafter) We settled the Children of Israel in a blessed land and provided them with good things. They did not differ until knowledge was given them. Indeed, your Lord will decide between them on the Day of Resurrection.