Hazrat Mujahid (may Allah have mercy on him) said: Whoever receives a house as 'Umri', it will belong to him during his lifetime, and after his death, it will go to his heirs. Such a house will not return to the one who gave it as 'Umri', and 'Ruqba' is also similar to this. I asked Mujahid (may Allah have mercy on him) what is the meaning of 'Ruqba'? He replied: 'Ruqba' is when a person says that this house will belong to whichever of us lives longer.