Trackmyhashtag provides Historical twitter dataset related to any hashtag, keyword, mention or account with raw twitter datasets in CSV or JSON format. Twitter dataset contains tweet text exactly as posted on twitter along with metrics such as : 

Tweet ID, Date and Time of posting the tweet, Name and username of the account posting the tweet And many other valuable meta data present in the raw data sets.

Visit : https://www.trackmyhashtag.com/twitter-dataset