Book written by Hafez Maulana Muhammad Osman Ghani (M.G.A) twelve months of deeds and virtues Every action of a Muslim day and night is worship, if it is done only for the pleasure of Allah in the way prescribed by Allah and the Messenger ﷺ. Even various rituals are considered as worship if they are according to Quran-Sunnah.

On the other hand, doing any work or deed contrary to Allah, the Messenger and the Qur'an-Sunnah will not be included in worship. Therefore, direct or indirect evidence and support from the Qur'an-Sunnah is necessary for practice and worship in Islam.

It is human nature to not be interested in any work unless there is profit or benefit in it. And if one does not know about the harm and harm one does not want to give up harmful activities. Therefore, Allah and the Prophet ﷺ have described in the Qur'an and Hadith the benefits of good deeds in this time and the hereafter in fascinating detail and the evils of both worlds and consequences of evil deeds in terrifying detail.

Since the beginning of the practice of Islam, many valuable books have been written in Arabic on the merits of good deeds and the harms of bad deeds. At present some books are also observed in Bengali language. However, there is a lack of information in them, so I have realized the need to write a book on this subject with the strong proofs of the Qur'an and Sunnah according to the pure belief of Ahle Sunnat Wal Jamaat. Since Muslim religious practices are often associated with the Arabic months, the library is arranged according to the Arabic months. Hence it is named as 'Bar Masaal Amal and Virtue'.

People from all walks of life including scholars and scholars will benefit from this library, especially the respected khatibs of the mosque will benefit more.