It is narrated from Hazrat Aisha that I never saw signs of agitation on the face of the Prophet (peace be upon him), except when a cloud appeared (then those signs would be evident), and when that cloud would rain, those signs would also disappear.
Hadith Referenceمسند احمد / مسند النساء / 24503
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف لجهالة عمرو بن عبدالرحمن