Question 2: Is the reward for offering Salaah (Prayer) anywhere in Makkah multiplied as if it is in Al-Masjid Al-Haram (the Sacred Mosque in Makkah)? Is the punishment for committing sins in Makkah multiplied just like the reward of good deeds?
Answer: 1- There is a disagreement among the scholars concerning this issue.However, the most preponderant opinion is that reward is multiplied anywhere in the Haram (the Sacred Sanctuary of Makkah) because it is all considered Al-Masjid Al-Haram according to the Qur’aan and Sunnah.
2- As to sins, they are not multiplied in terms of their number either in Makkah or anywhere else. In fact, sins are multiplied in terms of their kind that varies in intensity and gravity depending on the time and place where the sins are committed, for example, if they are committed during Ramadaan, in the Noble Sanctuary, in Al-Madeenah Al-Munawwarah, and the like. Allaah (Glorified be He) says: Whoever brings a good deed (Islaamic Monotheism and deeds of obedience to Allaah and His Messenger صلى الله عليه وسلم) shall have ten times the like thereof to his credit, and whoever brings an evil deed (polytheism, disbelief, hypocrisy, and deeds of disobedience to Allaah and His Messenger صلى الله عليه وسلم) shall have only the recompense of the like thereof There are many Saheeh (authentic) Hadeeths to the same effect… read more here.