After Prophet Muhammad’s (PBUH & HP) death, Abu-Bakr and Umar ibn Khattab took over the caliphate (the kingdom of the Muslims). One of their most important yet harmful decisions was that they ordered all the Muslims to stop narrating or writing hadiths of the Prophet (PBUH & HP). They argued that if people narrate the hadiths of the Prophet (PBUH & HP), they may confuse verses of the Quran with them or they may forget about memorizing and learning the verses of the Quran. Once Abu-Bakr gathered all people and told them,

[Today] you narrate hadiths from the Prophet while you narrate different and paradoxical hadiths and indeed people after you will do worse. Therefore, do not narrate hadiths from the Prophet anymore and if someone wanted you to narrate, tell them that “we have the Holy Quran. So, follow its rules.” (1)

Qurzah ibn Ka’b (one of the companions of the Prophet) said, 

When we were going to Iraq, Umar accompanied us [until we left the city]. He said, “do you know why did I accompany you?” we said, “because you wanted to respect us”. He said, “in addition to that, I wanted to tell you that you are going to a place where its people recite the Quran like the bee buzz; hence do not occupy their minds with hadiths. Teach them the Quran and tell them a few hadiths of the Prophet (not too many) and I will do just like you. (2)

What they said is actually against the verses of the Holy Quran,

[We sent them] with clear proofs and written ordinances. And We revealed to you the message that you may make clear to the people what was sent down to them and that they might give thought. (16:44)

As you see, Allah almighty says that the Holy Quran needs to be interpreted by the Prophet (PBUH & HP), and without his hadiths, the Holy Quran cannot be completely useful. Writing the hadiths of the Prophet was forbidden for 100 years because of Abu-Bakr and Umar’s orders. Due to their decision, many hypocrites seized this opportunity to make fake hadiths and many people forgot about the Prophet’s (PBUH & HP) lessons.

Imam Baqer (AS)

Imam Baqer (AS) is the fifth Shiite Imam and Imam Sajjad’s (AS) son. His given name was Muhammad, but he was called Baqir al-Olum (shortened to Baqir), because he was a knowledgeable person. The word “baqir” means “splitter” and it means that Imam Baqir (AS) had split the knowledge and started a knowledge revolution as he was a very knowledgeable person. It is said that the Prophet (PBUH & HP) named him Baqir so many years before his birth. (3)

Imam Baqir (AS) lived when the Umayyad dynasty had gotten so weak due to the wars they had, and because of this, Imam Baqir (AS) had the chance to tell people about the teachings of the Prophet (PBUH & HP) after they were forgotten or distorted. He said,

Watch these people who are like the scribes and the monks who hide the teachings of the Quran and distort it… watch them they saved the words of the Quran but distorted its meaning and they are always with the kings and royalties. When the greedy kings and leaders are overthrown, they are with the ones who have more wealth and power and this is the only thing they know. (4) 

Due to the political circumstances, Imam Baqir (AS) was able to have classes and teach people what he had learned from his ancestors in various fields including laws, doctrine, tawhid (monotheism), imamate, interpretation of the Quran, ethics and the like. Accordingly, most Shiite hadiths belong to Imam Baqir (AS) and his son, Imam Sadiq (AS). 

About his father, Imam Sadiq (AS) says,

Before Imam Baqir (AS) Shias didn’t completely know how to perform hajj, what is halal, and what is haram until the time Imam Baqir (AS) performed hajj for them, taught them how to do it, and what is halal and what is haram. Then the Shias didn’t need the Sunnis anymore and the Sunnis started to learn from them instead. (5)

As we said before, during the first three caliphates, the laws of Islam and the teachings of the Prophet (PBUH & HP) were mostly distorted or forgotten by people, and due to this fact, Imam Baqir (AS) had to repeat the lessons for people, especially the Shias. 

Imam Baqer (AS) in the view of the Sunni scholars 

The Sunni scholars all respect Imam Baqir (AS) and believe that he was among the most knowledgeable scholars in Islamic history. They have narrated the hadiths of the Prophet (PBUH & HP) from him and some of their scholars were his pupils.

Abdullah ibn Ata’, one of the Sunni scholars who lived during the same time as Imam Baqir (AS) says,
I haven’t seen anyone like Abu-Jafar (Imam Baqir) whose knowledge of the Sunni scholars seemed so little compared to him. Indeed, I saw Hakam ibn Utaibah (one of the greatest Sunni scholars of those times) with him and Hakam was like a pupil to him. (6)

Resources 

1.  Tadhkirah al-Huffaz, az-Zahabi, vol.1, pg.9
2.  Tadhkirah al-Huffaz, az-Zahabi, vol.1, pg.12
3.   Al-Kafi, Sheikh Koleini, vol.1, pg.469
4.   Al-Kafi, Sheikh Koleini, vol.8, pg.54
5.  Tafsir, al-Ayyashi, vol.1, pg.252 & 253
6. Tarikh Damashq, ibn Asakir, vol.54, pg.278
    

In answering questions about singing in Islam, we cannot say that singing is completely forbidden (Haram) in Islam. Like any other issue, we have to find out what kind of singing is allowed (Halal) and that if there is a prohibition, what is that makes it forbidden (Haram)?

What Makes Singing in Islam Forbidden (Haram)?

In deriving the ruling of singing from the Quran, jurists usually refer to two main verses:

“Among the people is he who buys diversionary talk that he may lead [people] astray from Allah’s way without any knowledge, and he takes it in derision. For such, there is a humiliating punishment” (31:6).

Some interpreters have taken the phrase “diversionary talk” (Lahw al-hadith) as any sort of speech that deviates people’s minds from the righteous way and attracts the concentration of people to an unjust saying. Jurists have expanded the unjust saying to any sort of expression of mind which may contain poetry or singing or music [2].

Also, it is said in another verse: “So avoid the abomination of idols, and avoid false speech …” (22:30).

In the interpretation of “false speech” (Qowl al-zur) in this verse, it is said that a false statement is any word that deviates people from the righteous way and remembrance of God [3].

When jurists want to define the forbidden (Haram) singing in Islam, they use the term “ghina”.  In Islamic jurisprudence, singing is not forbidden (Haram) unless it is known to be ghina.

What is Ghina?

Ghina is the voice of a human, which is produced in a rise and fall pattern to create the effect of rapture that is suitable for frivolous and carouse gatherings. It is forbidden (Haram) to engage in this type of singing; as well as listening to it, even if it does not lead to rapture in the listener [4].

Any kind of singing that deviates a person from a moderate mood (may it be happy or sad) is referred to as ghina. The most visible sign of this deviation from a moderate mood is when the person loses his self-control; like the feeling that occurs to man after drinking wine. Islam has always prevented Muslims from being stuck in such moods.

Gatherings of merrymaking and sin are those kinds of gatherings that are formed for singing, dancing, debauchery, and sensuality.

Also, there might be some songs that do not deviate one from his/her moderate mood but are common for gatherings of merrymaking and sin. Those are also known as ghina.

Have you ever seen in some concerts, how the audience lose their mind and apart from dancing or crying with the song, they shout or faint out of rapture? This kind of singing is ghina, and those sorts of gatherings are referred to as gatherings of merrymaking and sin. Any kind of singing that changes the normal and rational mood of a person is ghina [5].

Some Hints to Recognize Ghina

Ghina is the type of song that is branded for amusement gatherings and parties.
Ghina is related to the type of song; meaning that if the lyrics of a song convey positive messages to the listener but the music of the song is jaunty, it makes that music forbidden (Haram) [6].
Ghina is when the lyrics of a song are about describing the beauties of a woman (whether physical or erotic description), or it has been written about wine, or dance or other prohibited (Haram) things in Islam [7].
Ghina is any song that changes the mood of the listener; makes him/her either happy or sad; any music or song that makes a gap between the present moods of the listener with his/her “real self” and weakens the control of the person over her speech or behavior.
Ghina is the sort of song that has such hopeless content, which destroys the positive motivations of the listener.
Ghina is any kind of song that by content, lyrics, or the specific sound of the musical instrument can arouse sexual temptation.

What Sort of Singing Is Lawful (Halal) in Islam?

Having mentioned the criteria of forbidden (Haram) singing, we can say that those songs which do not contain the conditions mentioned above are lawful (Halah).

Overall, if the listener maintains that as per common view they are not enraptured, there is no problem in listening to the songs (with or without music). Thus, neither the intention of the singer nor the content have anything to do with this ruling [8].

Listening to Women or Children Singing in Islam

In the matter of listening to a woman reciting poetry and other material with rising and falling her voice to the accompaniment of music, if the vocalization does not amount to ghina, listening to it is not driven by lust, and does not lead to a bad consequence, there is no problem in listening to it for women. If a woman’s signing is sexually exciting or listening to it leads to vile consequences, it is not allowed to listen to it at all. [9]

Regarding women’s singing to be heard by men, if it is not ghina and is not intended for questionable purposes or does not lead to vile consequences, as long as it is not sexually erotic, it is not forbidden (Haram). But as it often happens that listening to the beautiful voice of women is joyful for men, it is better if women do not sing for men and for men not to listen to women singing.

References:

1. Ma’aref and Ma’arief, vol. 8, p. 283
2. singing in Islam
3. Rouhollah Khaleghi, An overview of music, p.4
4. muslim singing
5. Sayyid Mujtaba Husseini, Questions and Answers by Students (Rules regarding Music), pg. 40-42
6. Art from the point of view of the supreme leader, p. 32-4
7. Tafsir –e Qartabi, vol. 7, p. 5136
8. singer 
9. Are Muslim allowed to sing?