I want to know that what is the best practice according to the holy Quran and Sunnah for moving to the newly constructed house. Kindly send with the references.
بسم الله الرحمن الرحيم
After shifting into a new house one should offer some nafl salah and then make supplication. Or some pious person is called for the supplication for prosperity and blessing. If you prepare some food and feed people to thank Allah without following any ritual and custom then it is allowable.
Allah knows Best!
Darul Uloom Deoband