What does the Muslim say when he hears the thunder?

سُبْحَانَ الَّذِي يُسَبِّحُ الرَّعْدُ بِحَمْدِهِ وَالْمَلَائِكَةُ مِنْ خِيفَتِهِ

How perfect He is, (The One) Whom the thunder declares His perfection with His praise, as do the angels out of fear of Him.