zakat. To this, Abu Bakr RA, which has been banned
by the Muslims in Medina, embattled against people
who do not want to pay zakat, because the obligation
to pay zakat is equal to the obligation to perform the
prayer. (Baca Abdurrahman Qadir, 2001; Jo. Syed
Mahmuddunnasir. 1994). This was due to religious
reasons, in this case zakat. It was stated that: Asbabu
ikhtilafi al-shahabah wa al-tabiin fi al-furu’:
1) Minha Shahabiyyan sami’a hukman fi
qadliyyatin aw fatwin wa lam yasma’hu al-
akhar, fa ajtahid bi ra yihi fi dzalika w3a hadza
huwa al-wujuh:
a. an yaqa’a ijtihaduhu mawaqifa al-haditsi
b. an yaqa’a bainahuma al-munadharah wa
yadhharu al-haditsu bi al-wajhi alladzi
yaqa’u bihi ghalibu al-dhanni fa yarji’u
‘an ijtihadihi ila al-masmu’i
c. an yuballighahual-hadits wa lakin la ‘ala
al-wajhi alladzi yaqa’u bihi ghaliu al-
dhanni, fa lam yatruk ijtihaduhu bal
tha’nun fi al-haditsi .
d. an la yashila ilaihi al-haditsu ashlan.
2) Wa min tilka al-dlurubi an yaraw Rasulallahi
SAW fa’ala fi’lan fa hamalahu ba’dluhum ‘ala
al-qurbati wa ba’dluhum ‘ala al-ibahati.
3) Wa minha ikhtilafu al-wahmi.
4) Wa minha ikhtilafu al-sahwi wa al-nisyani.
5) Wa minha ikhtilafu al-dlabthi.
6) Wa minha ikhtilafuhum fi ‘illati al-hukmi.
Wa minha ikhtilafuhum fi al-jam’i baina al-
mukhtalifain. (See Waliyullah al-Dahlawiy.1978)
The disagreements of the companions were
allegedly due to several reasons:
First, a Companion hears an explanation of a
problem; while others did not hear it, so he did ijtihad.
As it is understood that ijtihad may be different from
one shahabat to another in view of a problem,
because:
1) The ijtihad perhaps corresponds to a hadith of
the Prophet.
2) The result of ijtihad is somewhat similar to a
hadith; however, it appears that the hadith is
stronger, so the shahabat tries to rectify the
results of his ijtihad by turning to the hadith of
the Prophet.
3) Perhaps the result of his ijtihad is somewhat
similar to hadith; but apparently his thought of
ijtihad was more rational and more convincing,
so the shabat did not abandon the results of his
ijtihad, he even suggested the hadith of the
Prophet.
4) The possibility of absence of a hadith that
speaks of this subject.
Secondly, some Sahabahs saw the Messenger of
Allah doing a deed, assuming that Rosul was
performing a prayer, while others assumed Rosul was
just doing an ordinary act (permissibility). Third, the
difference is caused by misunderstanding. Fourth, the
difference is from forgetting. Fifth, Differences are
due to different reasoning (methods). Sixth, the
differences comes from understanding the
background of a cause of problems. Seventh, the
differences are caused by compromising two different
opinions.
The science of Islam has grown ever since. The
fiqh, kalam, tafsir, hadits and other science have also
developed.
There are four well-known school of thoughts in
fiqh; Imam Hanafi 80 AD/699 BC, Imam Malik 93
AH/712 BC, Imam Syafii 150 AH/767 BC and Imam
Ahmad Ibn Hambal 164 AH/780 BC. They each have
a different way of understanding the Qur'an, and
different propositions that lead to different
conclusions in legalizing the law.
In understanding the law in Islam Imam Hanafi
uses: Imam Hanafi 1) Kitabullah, 2) Sunnah Rasul, 3)
Fatwa-fatwa 4) Qiyas, 5) Istihsan, 6) Community ‘Urf
and culture. Imam malik in denominating the laws
hold on to 1) Kitabulloh, 2) Shohih Sunnah 3) Medina
Ulama practices even have to reject the hadith that
looks counter with the charity scholars of Medina, 4)
Qiyas, 5) Mashlahah al-Mursalah and Istishlah. Imam
Syafii uses 1) Dhahir al-Qur'an as long as there is no
proposition that divert other meanings, 2) Sunnah as
long as with reliable narrator. He likened the Shahih
sunna to al-Quran, 3) Ijma (no dispute of the
scholars), 4) Qiyas, by rejecting istishlah and istihsan,
and 5) Istidlal. Imam Hambali uses 1) Nash al-Qur'an
and Hadith Marfu, 2) Fatwa-sahwa sahabat, 3) Fatwa
Sahabah close to al-Qur'an and al-sunah, if fatwa-
fatwa contradiction, 4) Hadits Mursal and Dlaif, and
5) Qiyas. (Read Abdurrahman I Do’i. 1984; Jo. Hasbi
al-Shiddiqi. 1968)
There are also Kalam school of thoughts as
(Abdul Rozak, dkk., 2012; ‘Abdul Qahir bin Thahir
bin Muhammad al-Bagdadiy al-Isfirainiy al-Tamimi,
1037; ‘Ali Mushthafa al-Gurabiy, 1958): Hasan al-
Basri (30-110 H), Washil bin Atho (....-131 H), Abu
Hudzail, al- Nazzam, al-Jubba’i, Ibn Hisyam, ‘Amr
bin Ubaid, and al-Khayyat, they are known as
Mu’tazilah. They are also rational theologist. There
are also other moderate theologists as: Abu Hasan al-
Asy’ari, al-Baqillani, al-Juwaini, al-Msturidi, dan al-
Bazdawi. The development of Syiah theologians has
also added to the development of theology in the
Islamic world. They have contradictive thoughts with
most theologians. Their statement, among others,
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