He performs the Obligatory Prayers in His House due to Shyness
Question :
I pray in my house due to the following reasons: I am afflicted by extreme shyness, although I offer many supererogatory prayers and supplicate often and glorify Allah as well. Is my prayer in the house not accepted?
Answer:
It is incumbent upon you to pray in the mosque with the congregation. The shyness which causes you to abandon this legal obligation is considered cowardice, and it is not permissible for a person to abandon an obligation due to shyness. Such person must force himself to pray with the congregation, so if he is shy on one day, he will not be shy on another day. However, if you are not capable of going out to the mosque at all and so you pray in your house, there is no sin upon you, because this is considered to be a valid excuse, because Allah says:
So can. keep your duty to Allah and fear Him as much as you can.
And the Prophet said:
"If I order you do something, do it as much as you are able.
Source:
Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 2 Pages 392-393