Sources of Islamic legislation

1-Textual sources:

- Quran


2- Sources requiring scholarly endeavor (ijtihad).

1-      Unanimity (i.e. Ijma' ).

2-      Analogy (i.e. Qiyas).

3-      Subtle analogy (i.e. Isthsan).

4-      Interests without rulings (i.e. Ma li Mursalah).

5-      Customs of Muslims (i.e. al- 'Urf).

6-      Statements by the Prophet’s (peace be upon him) Companions’.

7-      The laws of earlier divine religions.

8-      Prevention of what leads to the prohibited (i.e. sadd al-dhara’i').

9-      Al-Istishab.