The application of fasting in the thought of the martyr Muhammad Muhammad Sadiq al-Sadr, may God bless him, contains the opinions and fatwas of the martyr al-Sadr regarding fasting taken from his valuable and prestigious books the following: The book of fasting between the questioner and the respondent Issues and Responses Book, Part 1 (Fasting Issues) Issues and Responses Book, Part Two (Fasting Issues) Issues and Responses Book, Part Three (Fasting Issues) Issues and Responses Book, Part Four