The doa when entering home is: 'Bismillahi walajna wa bismillahi kharajna wa 'ala Rabbina tawakkalna' — In the name of Allah we enter, in the name of Allah we leave, and upon our Lord we place our trust. When said upon entering, the devil says to his companions: 'You have no place to stay here.'
بِسْمِ اللَّهِ وَلَجْنَا، وَبِسْمِ اللَّهِ خَرَجْنَا، وَعَلَى رَبِّنَا تَوَكَّلْنَا
Bismillahi walajna, wa bismillahi kharajna, wa 'ala Rabbina tawakkalna.
Meaning: In the name of Allah we enter, in the name of Allah we leave, and upon our Lord we place our trust.
Source: Sunan Abu Dawud #5096Nabi (shallallahu alaihi wa sallam) said: 'When a person enters his home and mentions the name of Allah upon entering and upon eating, Shaytan says to his companions: You have no place to stay and no dinner here.' But when he enters without mentioning Allah, Shaytan says: 'You have found a place to stay.' (Sahih Muslim 2018)
بِسْمِ اللَّهِ وَلَجْنَا، وَبِسْمِ اللَّهِ خَرَجْنَا، وَعَلَى رَبِّنَا تَوَكَّلْنَا
The Messenger of Allah (peace be upon him) said: 'When a man enters his house, let him say: Allahumma inni as'aluka khayral-mawlaji wa khayral-makhraji, bismillahi walajna wa bismillahi kharajna wa 'alallahi Rabbina tawakkalna. Then let him greet his family with salaam.'