A--- As for Prayer, he who delays it after its proper time due to either or both reasons should be asked to repent to Allah. If he repents, he shouldn't be punished. But, if he does not repent, he should be killed; this is a prescribed penalty, for Allah says: {But if they repent and perform Prayer, and give Zakah, then leave their way free (i.e.

don't punish them)}. (At-Taubah,5)

Allah's Messenger (Peace be upon him) says: "I have been commanded to fight against people until they testify that there is no god but Allah, and he who professes it is guaranteed the protection of his property and life on my behalf except for a right warrant, and his affairs rest with Allah ", (Bukhari and Muslim)

As for Zakah, if the one who withholds it is not someone influential, the Imam (Muslim ruler) takes it from him by force, and makes an example of him by taking away some of his property. The Prophet (Peace be upon him) says: "And he who withholds it, we will take it along with half of his property as well”, (Compiled by Ahmed, Abu Dawud and AnNasa'i) But, if they were a strong and fierce group, the Imam (Muslim ruler) should fight against them till they pay it, according to the aforementioned Qur'anic verses and Hadiths. Abu Bakr Al-Siddiq and the other companions of the Prophet (Peace be upon him) took a similar action.

As for Fasting, nothing has been related pertaining to it. But, the Imam (Muslim ruler) or his vicegerent should discipline defaulter and make an example of him. As for Hajj, it is compulsory throughout one's lifetime; only death nullifies this obligation. Thus, one should carry it out once he could afford it. Anyone who neglects performing the Pilgrimage will be punished in the hereafter for such neglect; however, there is no prescribed punishment in this world.

Reference: 200 FAQ On Muslims Belief - Shiekh Hafiz Ibn Ahmed Al Hakami