the meaning of sincerity

sincere to Allah Subhanahu wata'ala meaning a person intends by his worship to her taqarrub (closer) to Allah Subhanahu wata'ala and get keridhaanNya.
If a slave wanted something else through worship, then here need to be specified later based on the following classifications:

First, he wanted her taqarrub to other than Allah in his worship and praise all the creatures of his actions. Thus, this renders the practice and includes shirk.
In a saheeh hadeeth of Abu Hurayrah that the Prophet shollallaahu'alahi rodhiallaahu'anhu wasallam said, "Allah Subhanahu wata'ala said,
أنا أغنى الشركاء عن الشرك, من عمل عملا أشرك فيه معي غيري تركته وشركه.
"I am the Essence most do not need the fellowship of the allies; those who do a deed in which he mempersekutukanKu selainKu with something, then I will leave it with shirk that done." [1]
Second, he intends by his worship to achieve worldly goals such as leadership, honor and property, not for the purpose of air-taqarrub to Allah, and good deeds of people like this will fall and can not bring himself to Allah Subhanahu wata'ala. In this case, Allah Subhanahu wata'ala said,
من كان يريد الحياة الدنيا وزينتها نوف إليهم أعمالهم فيها وهم فيها لا يبخسون
أولئك الذين ليس لهم في الآخرة إلا النار وحبط ما صنعوا فيها وباطل ما كانوا يعملون
"Whoever desires the life of the world and her jewelry, We shall give to their children in the world with their work and their perfect world it would not be harmed. Those are the people who do not get in the Hereafter except hell and gone in the Hereafter is what they have earned in the world and it is useless what they have done. "(Hud: 15-16).
Difference between the first and second classification; that in the first classification, the person's intention that he was praised for his worship as a worship to God. While on this classification, he did not intend for him to be praised for his worship is the worship of God as a fact he did not even care about the praise of people against him.
Third, he intended for her to Allah Subhanahu taqarrub wata'ala, as well as worldly goals is a logical consequence of the existence of such worship, as he has the intention of doing-besides thaharah intention to worship God, to refresh the body and removes dirt her: she was the intention of pilgrimage, in addition to worship God, to witness the locations of the symbols of the pilgrimage (al-Masya'ir) and met the pilgrims; then this will reduce the reward sincere but if a more dominant is the intention beribadahnya, means full reward that should be achieved will be missed. However, this has no effect when in the end to sin. It is based on the word of Allah Subhanahu wata'ala about the pilgrims,
ليس عليكم جناح أن تبتغوا فضلا من ربكم
"There is no sin for you to find the gift (Rizki the trade) of Rabbmu." (Al-Baqarah: 198).
If the dominant is the intention other than worship, then he did not get the reward of the Hereafter, he gets only what it produces reward in the world. I'm afraid he's actually guilty of it, because he has made the worship that should be the highest goal, as a means to achieve a despicable worldly life. So, he's like the people referred to in His word,
ومنهم من يلمزك في الصدقات فإن أعطوا منها رضوا وإن لم يعطوا منها إذا هم يسخطون
"And among them there are those who reproach you about the (division) alms: if they are given part thereof, they have hearts, and if they were not given any part thereof, with their necessarily become angry." (At-Tawbah: 58).
In the Sunan Abu Daud of Abu Hurairah rodhiallaahu'anhu mentioned that there was a man saying, 'O Messenger of Allah, (what if-Desc.) A man wants to wage jihad in Allah's way while he was also looking for worldly life? "The Messenger sholallaahu 'alaihi wasallam said, "He did not get the reward." The question was repeated three times and the Prophet SAW sholallaahu'alaihi remain the same answer, "He did not get the reward." [2]
Similarly hadith ash contained in the book-Shahihain of Umar ibn al-Khattab that the Prophet shollallaahu'alaihi rodhiallaahu'anhu wasallam said,
من كانت هجرته إلى دنيا يصيبها أو إلى امرأة ينكحها فهجرته إلى ما هاجر إليه.
"Those who want to reach the Pilgrimage for earthly life or to get a woman to be married; then moved him only to get the purpose of the Pilgrimage". [3]
If the rates are the same, nothing is more prevalent among non-religious faith and worship; then this still needs to be studied further. However, opinions are more precisely for cases like this is the same: do not get the reward as those who labor for God and as well in others.
Difference between this type and the type of previous (second type), that goal is not to worship on the previous type is automatic. Thus, his desire is achieved through the actions automatically as if she wants is a logical consequence of the work that is secular.
If someone says, "What standarisisi on this type so that it can be said that the dominant purpose is to worship or not worship?"
The answer, standardization that he did not pay attention to things other than worship, then either it is achieved or not achieved, has indicated that the more dominant is the intention to worship him, and vice versa.
Clearly, the case is very serious and careful speech is so urgent at all. The indication, it could be able to make a servant of ash-Shiddiqin reach the stairs, and vice versa can also return it to the degree that the bottom rung.
Some scholars Salaf said, "I never fought against something more than the struggle against the (deeds) sincerely."
We ask Allah to us and you all a sincere intention to be awarded and straight at the charity.
Collection and the Fatwa of Shaykh Ibn Uthaymeen Proceedings, Juz I, p. 98-100.
__________Footnotes:[1] Saheeh Muslim, Book of az-Zuhd (2985).[2] Sunan Abu Daud, the book of al-Jihad (2516); Musnad Ahmad, Juz II, p. 290, 366 but in bin Yazid Mukriz sanadnya there, an unidentified (majhul): see also the annotation of Shaykh Ahmad Shakir on Musnad Ahmad, no. 7887.[3] Saheeh al-Bukhari, Book of Bad 'al-Wahyi u (1), Sahih Muslim, Book of al-Emirate (1907)