Question 147: In the suburb where I live there is a Masjid (mosque) with a Zawiyah (corner, prayer room) reserved to a Tareeqah (Sufi order). Is it permissible to pray in it?
Answer: Do not pray with these Sufis in their Zawiyah, and beware of keeping company with them and mixing with them, lest you should be influenced by their acts. You are advised to offer Salaah (Prayer) in a Masjid where the congregation is keen to follow the Sunnah and adheres to it... read more here.
Question 146: What is your opinion concerning these things written in the attached paper: “Hizb Al-Aman”, “Raqam 2”, “Salaah Al-Nuqtah” and “Salaah Al-Lahootiyyah”?
Answer: What has been mentioned in the attached paper with your question; Hizb Al-Aman, Salaah Al-Nuqtah, and the Salaah Al-Lahootiyyah etc. Are kinds of Sufi Bid`ahs (innovations in religion) and doing them is not permissible... read more here.
Question 145: Is it permissible to invoke Allaah saying “Yaa Hoo” i.e. referring to Allaah with He meaning: “He is Allaah”?
Answer: Single pronouns refer to the speaker, the addressee or the absent. They are not names of Allaah in the lingual or the Shar`ee meaning because He does not name Himself by it. So, invoking Him with them is nomination, calling and mentioning Him with anything other than His names which is not permissible. It is considered a deviation in His names by calling Him names that He does not call Himself and it is not a permissible supplication. Allaah (Glorified be He) forbids that saying: And (all) the Most Beautiful Names belong to Allaah, so call on Him by them, and leave the company of those who belie or deny (or utter impious speech against) His Names. They will be requited for what they used to do.... read more here.