The Prophet ﷺ said, "There is an hour on Friday during which no Muslim servant asks Allah for something good without being granted it."
وبالإسناد إن في الجمعة لساعة لا يوافقها عبد مسلم يسأل الله عز وجل فيها خيرا إلا أعطاه إياه
Its chain of transmission is sahih. It has already appeared at 7151 and 9211.