Evidence of the Oneness of Allah includes the following:
1- The entire universe, in the way it is created and is controlled, testifies to the oneness of Allah.
2- The creation of the heavens and the earth, the alternation of night and day, the different kinds of inanimate objects, plants and fruits, the creation of humans and animals; all of that indicates that the Almighty Creator is One with no partner or associate.
3- The variety and greatness of these created things, the perfection of their formation, and the way they are maintained and controlled, all indicate that the Creator is One.
4- The soundness of the heavens and the earth, the order of the universe, the harmony among created things, all indicate that the Creator is One, with no partner or associate.

Placing the hands on the chest is what is established in the Sunnah. Hands are placed on the chest in two ways: 1- Placing the right hand on top of the left hand, wrist and forearm. 2- Clasping the right hand over the left.

With regard to shaving body hair in the case of a man, it is permissible according to the Malikis, and it was said that it is Sunnah. What is meant by the body is everything except the head.

The Hadiths clearly state that even if the sin is repeated a hundred times or a thousand times or more, and one sincerely repents each time, Allah will accept his repentance and his sin will be erased.

Wiping the face with the hands after making Du`a is not prescribed in Islam, because the Hadiths that have been narrated concerning that are inauthentic.

The one who has any zakatable wealth must pay Zakah on it, when one year has passed since he acquired it, even if he has debts, according to the more correct of the two scholarly opinions. Prophet Muhammad used to command his agents to take Zakah from those who owed Zakah, and he did not tell them to ask them whether they had any debts or not.

With regard to masturbation, the basic ruling is that it is prohibited according to the majority of scholars, and the one who does it should be given a Ta`zir punishment, but it is not like Zina.

Playing cards is prohibited in Islam even if there is no money involved, because the problem with playing cards is that it distracts people from remembering Allah and from prayer. Also it is still a means that may lead to gambling which is expressly forbidden in the Quran.