Is it permissible to fast after the 15th of Sha'ban?
Question
Is it permissible to fast after the 15th of Sha'ban?
Answer
Fasting in the second half of Sha’ban, i.e. after the 15th of Sha'ban, is not permissible, except for whoever has the habit of fasting regularly or who is making up a missed obligatory fast.
Lady 'Aishah, the mother of the believers (may God be pleased with her), used to make up for the missed days of Ramadan in the month of Sha`ban.
Based on this, it is not allowed to initiate a new fasting in the second half of Sha'ban as long as it is not a habit like fasting regularly on Mondays and Thursdays or making up a missed fast.