Bismillah, Praise and thanks to Allah, the Lord of the Worlds. I ask Allah to raise the rank of our master Muhammad and to protect his nation from whatever he feared for it.
The scholars of Islam categorized sins to the different organs of the body. There are sins of the hand, heart, eyes, ears and so on. I will in this post talk about the sins of the tongue because it’s most common.
**The sins of the tongue: **
Among what one must avoid are the sins of the tongue. Among the sins of the tongue are giving an Islamic judgment without knowledge, refusing to teach the Islamic obligatory knowledge while there is a student who wishes to acquire it, and refraining from ordering with ma^ruf (obligations) and forbidding munkar (prohibitions).
**1- Giving judgment without knowledge: **
It is sinful for one to give judgments in the matters of the Religion out of one’s own opinion. This harms the one who does it. For example if someone says: “Such and such is allowed or not allowed,” while one does not know the Islamic judgment of whether it is allowed or not, one commits a major sin.
The Prophet, sallallahu ^alayhi wa sallam, said:
“Man afta bighayri ^ilmin fa^alayhi la^natullahi wal-mala’ikati wan-nasi ajma^in.”
Which means: **“Let the damnation of Allah, the angels, and all the people be on the one who gives an Islamic judgment without knowledge.” **(Related by As-Suyutiyy.)
**2- Refusing to teach the Islamic obligatory knowledge while someone wishes to acquire it: **
This is one of the sins of the tongue. An example of it is refusing (without a religious excuse) to teach the personal obligatory knowledge to a person who needs to learn it.
The Prophet, sallallahu ^alayhi wa sallam, said:
“Man su’ila ^an ^ilmin fakatamahu uljima yawmal-qiyamati bilijamim min-Nar.”
Which means: “The one who is asked to teach the religious [obligatory] knowledge and refrains from it (with no excuse) will be bridled with a reign of fire on the Day of Judgment.” (Related by Ibn Majah, al-Hakim, Ibn Hibban.)
**3- Refraining from ordering with ma^ruf (obligations) and forbidding munkar (prohibitions): **
This is among the sins of the tongue only if one is able. So, if someone sees another person, who listens to advice, leaving out the prayer, one is obligated to order him to pray.
I advise myself and everyone in this forum to pay attention before saying a word or typing a letter, because talking about the religion is very serious, if you learnt what you know, say it, if not dont’ say it. Check if it’s true or not from a knowledgable teacher or scholar.
Allah knows best.