It is narrated from Musa bin Abdul Aziz, he said: Hakam narrated to me, he said: Ikrimah narrated to me that when Sayyiduna Ibn Abbas (may Allah be pleased with them both) heard the sound of thunder, he used to say «سبحان الذى سبحت له» "Glory be to Him whom you have glorified." And he said: Thunder is an angel who drives the clouds just as a shepherd drives his goats.