Narrated 'Aishah [may Allah be pleased with her]:
"When the Prophet (ﷺ) saw storm clouds he would pace back and forth. And when it rained, he would relax." She said: "I said something to him about that, and he said: 'What do I know? Maybe it is as Allah, Most High said: Then, when they saw it as a dense cloud approaching their valleys, they said: "This is a cloud bringing us rain (46:24)."' (ES)
English reference (ES): Vol. 5, Book 44, Hadith 3257 (ES)
Arabic reference (ES): Book 47, Hadith 3566 (ES)