Responsibility in Islam also covers every action that one is supposed to do as a Muslim and his/her interactions with others. Thus, human beings are responsible towards others including: whoever they interact with, whatever they have been given in this world, the divine duties they are expected to perform, and their surroundings and environment.

The responsibilities of a Muslim towards other human beings were discussed in the first part of the article. Here the focus is on the responsibilities towards some non-humans including divine duties [i] and, the property and belongings.

The Rights of Prayer as One's Responsibility in Islam

The right of the ritual prayer over one is to know that he\she is standing before God. Knowing that one should stand in His presence like a lowly servant who is inclined to approach his lord, and who is fearful and ashamed because of his\her sins, but still hopeful of His mercy [1], is our responsibility in Islam towards our prayers. 

He\she should also magnify Him through stillness, bowing of the head, humbleness of the limbs, yielding of the wing, and by saying the best supplications to Him. Then, one should beseech Him to save him\her from the punishments that he\she deserves for his\her faults and sins [1].

The Rights of Fasting

The right of fasting is to know it as a veil that God has set up over one’s tongue, hearing, and sight, private parts, and stomach, to protect him\her from the Fire. Whoever protects his\her parts of the body with the veil of fasting, can be hopeful to be saved from the punishments and the Fire.

But if one leaves his\her parts of the body to do freely unlawful (Haram) acts (e.g., looking at unlawful things and scenes that incite lust and encourage disobeying God) and does not fear God, he\she won’t be safe anymore [1]. 

The Rights of Pilgrimage

The right of pilgrimage is that one should know that he\she has immigrated from his\her sins to God and is standing in His presence. He\she should also know that it is through the pilgrimage that one’s repentance can be accepted and he\she performs an obligation made incumbent upon him\her by God [1].

The Rights of Charity

Of the rights of charity is to know that it is like storing away with God and is a deposit for which no witness is needed. Hence, it would be better to donate in private other than in public. Also, one should not remind others of what he\she has donated since the charity is like a saving whose benefit returns to the donor.

Otherwise, the same thing might happen to him\her when someone else does him\her a favor. Moreover, reminding others of the charity donated demonstrates the impure intention of the donor; like the tendency to show off or humiliate others [1].  

The rights of Sacrifice [ii]

Of the rights of the offering is to consider it as a way to expose oneself to God’s Mercy. So, one should make offering not for receiving others’ approval, but God’s approval.  Therefore, what others say about the offering should not matter [1].  

The Rights of Property

Of the rights of the belongings and property over one and one's responsibility in Islam towards them are to gain it through lawful (Halal) means, to spend it on lawful (Halal) purposes, and to utilize it such that it brings about blessing and salvation in this world and the Hereafter [1]. Imam Sadiq (AS) said that whoever makes money in unfair ways, he\she will lose it justly [2]. According to Surah Qasas, one should use the wealth that God has granted for doing good to others and preparing for the Hereafter (28:77). 

The property and wealth should be used to get God’s satisfaction. It is narrated from Prophet Muhammad (PBUH) that God will punish those who forget about the poor people among them and keep on raising money [3]. Hence, one should not prefer his\her belongings to his\her spirit such that he\she hesitate to use them for spiritual progression. Otherwise, others will inherit this property after his\her death. If they utilize the inherited property in unlawful (Haram) ways, he\she will also be punished for that. If the inheritors use the inherited property properly, they are the ones who will be rewarded [1].

Notes:
[i] The acts and practices that are obligatory (Wajib) or recommended (Mustahab) in Islam.
[ii] Animal sacrifice for the sake of God.

References:

1. Imam Zayn al-'Abidin (AS), “Treatise On Rights (Risalat al-Huquq)”.
2. S. al-Harrani “Tuhaf al-Uqul”, p. 321.
3. W. al.Hilli, “Tanbih al-khawatir wa nuzhat al-nawazir”, vol. 1, p. 10.

As we all know, human life is on an extremely fast pace of progress that is made possible by human expeditions and exploration. But no one can say for sure that all the achievements of this progress have been used on the righteous path. Some of these explorations are known as a forward leap in human history just like dynamite that has been used to ease miner’s jobs. But the same invention has also been used as a deadly weapon against thousands of innocent humans. Obviously, Islam did not miss this point about human life and gave advice to all Muslims in this regard: “Islam forbids eating, drinking and consuming things that are harmful to human health. The more harmful it is, the more severe the prohibition of its cause and effect, to the extent that it reaches the level of sanctity.” (1)

Now, we are going to talk about narcotics, the basis of all of the soothing medicine that are used as one of the essential materials in the ancient times surgery but is also used by heedless people for entertainment at the expense of decomposing their body and brain.

Narcotics are the most common cause of death and disability in the world that exacerbates many diseases, including cardiovascular, pulmonary, infectious diseases, cancer, bone diseases, gastrointestinal diseases, hearing problems, and oral diseases. In every 8 seconds, one person in the world dies of diseases caused by narcotics; fortunately, with the advancement of science and technology and optimal information, the level of awareness of people about the effects of narcotics on their health has increased. We will see what advice Islam gave us on the issue of using narcotics for mortal pleasure.

The opinion of some of the leaders of Islam about Drugs

As we said before, Islam forbids consuming materials that are harmful to human health to the extent that even on some occasions it reaches the level of taboo. Imam Khomeini, the first leader of the Islamic Republic of Iran said: "Eating something that is harmful to human beings is forbidden."(1) It is obvious that the criterion for being haram (forbidden) is to have harmed, and it does not matter whether this harm goes through eating or in some other way. Drugs is one of the things that harm human health, but is it harmful to the extent that makes it forbidden to use?

Many physicians and practitioners are following the opinion that narcotics has significant harms and have written numerous books on the dangers and diseases caused by narcotics, especially smoking. Therefore, it can at least be claimed that the harmful effects of smoking to human health vary based on the person and the situation. On this basis, some jurists have considered the extent of the forbiddance of narcotics to the level of absolute religious prohibition. Some other leaders have not seen the extent of the damage to the extent that could lead to an absolute ban on smoking. For example, if a person has heart disease and his doctor strictly forbids him from smoking, smoking is forbidden for him. (2) 

Not only Imam Khomeini, but also Ayatollah* Makarem Shirazi said: It is forbidden to eat or drink something that is significantly harmful to human beings. Smoking cigarettes and other types of tobacco is also haram if it has significant harm, but the use of narcotics is absolutely haram (3), whether in the form of injection or smoking or eating or in any other ways; also the production, sale and assistance in spreading it, is forbidden. (3)

Grand Ayatollah Sistani gave guidance to Muslims in this matter: If smoking and tobacco -though in the future- causes significant harm to the body to the amount that is feared by the wise person, it is haram for being safe from the major harm caused by it. There is no problem with moderate smoking, however. (4)

Conclusion

As we think about this matter reasonably, we surely would understand an important point: 
1. Why should we harm ourselves for a little mortal entertainment?
2. What price should we pay for this kind of entertainment?

Just think and you will see how important abstaining from narcotics is. Live safely in the light of the Quran. 

References:

1. Majma Al-Masayel (third volume – page 65)
2. Islamic Laws (Second volume – page 600)
3. Jame Al-Masayel (First volume – page 578)
4. Islamic Laws (Second volume – page 600)
5. The official site of Ayatollah Sistani

* Ayatollah is an honorific title for high-ranking Twelver Shia clergy in Iran and Iraq that came into widespread usage in the 20th century.