Relevance of Ijtihad Ibn Taimiyah to contemporary Jurisprudence

The ijtiha>d Ibn Taimiyyah update was built in two models of ijtiha>d; istidla>l and istinba>t}. Relevance strengthening of the naqly istinba>t} evidence and the approach of rationality independence (istidla>l) is urgently needed. Although in reality, Ibn Taimiyyah was more likely to wear the istinba>t} model than istidla>l. Ibn Taimiyyah said the foundation of the ijtiha>d method comprehensively, the naqly and ‘aqly evidence applied simultaneously in every determination of Islamic law. Upon consideration of every sharia law, there must be a good content of shari'a purposes, then ibn Taimiyyah's most popular view is that valid shari>ah evidence must correlate with the correct rational evidence. Ibn Taymiyah's legal method uses: (1) the Qur'an, (2) sunnah, (3) ijmâ', (4) qiya>s, (5) istish}a>b, and (6) mas}lah}ah al-mursalah. There is a strong relevance between the renewal of ijtiha>d Ibn Taimiyyah and the development of Islamic law, especially in the field of contemporary jurisprudence with the approach of mas}lah}ah. Such as the ability to exchange and sell waqf property, the ability to appoint leaders from non-Muslims, the ability to buy and sell goods embedded in the ground, and the ability to buy and sell goods on credit.