Question: It is said that verbal Riddah (apostasy) takes place by uttering words to that effect such as insulting one’s religion. It is also said that one who apostatizes in word through such insulting or the like annuls whatever good deeds that preceded that apostasy like Salaah (Prayer), Sawm (fasting), Zakaah (obligatory charity), etc, or a vow that was made. Is that person obliged to make up for what was missed or what was annulled because of Riddah or not? If the answer is in the affirmative, should he make up for missed days of fasting consecutively or not?
Answer: Types of Riddah were pointed out earlier; and it is not a condition for it to occur that the Murtad (apostate) says, “I apostatize from Islaam.”… read more here.