Q 2: I have read many Fatwas issued by you (Part No. 2; Page No. 45) urging the knowledge seekers to join the group of Tabligh (a group calling to Islam). I joined this group and made use of the knowledge they provide. However, they observe some acts that are not mentioned in the Book of Allah or in the Sunnah. The following are some examples:1. Forming circles of two people or more inside the Masjid (mosque) to study the last ten Surahs of the Qur'an and whenever they go out on a mission they have to perform this task mentioned above.2. Continuous performance of I`tikaf on Thursdays. 3. Determining certain days for setting out for Da`wah, three days of every month, forty days of every year, and four months during one's lifetime.4. Continuous collective supplication after each time of making Da`wah.If I join this group, what should I do with these acts which are not mentioned in the Book of Allah or in the Sunnah? Furthermore, changing the group's method is impossible. Please, advise.