وَالَّذينَ يَصِلونَ ما أَمَرَ اللَّهُ بِهِ أَن يوصَلَ وَيَخشَونَ رَبَّهُم وَيَخافونَ سوءَ الحِسابِ

And those who join what God has commanded to be joined, revere their Lord, and dread the dire reckoning.