بسم الله الرحمن الرحيم
(Fatwa: 73/70/B=01/1436)
Since you have given three talaqs to your wife; hence she went out of your nikah and became a stranger for you. Now it is unlawful and haram for you to live together. Now Shariah halalah and then new nikah is necessary in order to live together.
قال الله تعالى: فَإِن طَلَّقَهَا فَلاَ تَحِلُّ لَهُ مِن بَعْدُ حَتَّىَ تَنكِحَ زَوْجاً غَيْرَهُ . الآية [البقرة : 230]
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
