Is it permissible to pray inside the Ka'bah, whether obligatory or voluntary?

The questioner : Is it permissible to pray inside the Ka'bah, whether obligatory or voluntary? Please give us a ruling, and may Allah reward you.

The Shaykh : It is permissible to pray inside the Ka'bah, whether obligatory or voluntary, due to the generality of the saying of the Prophet (peace and blessings be upon him): The Ka'bah is part of the earth, so it falls under the generality of this statement. Also, it is established from the Prophet (peace and blessings be upon him) that he prayed voluntarily inside it. The principle is: what is established for voluntary prayer is established for obligatory prayer unless there is evidence to the contrary, and what is established for obligatory prayer is established for voluntary prayer unless there is evidence to the contrary.
This principle is indicated by the fact that when the Companions (may Allah be pleased with them) narrated the prayer of the Prophet (peace and blessings be upon him) on the mount, they said: . This exception indicates that it is permissible to pray the obligatory prayer on the mount, just as it is permissible to pray the voluntary prayer, but they excluded it by saying:

The questioner : May Allah reward you, O Shaykh. The questioner says:

The Shaykh : The stone, the current stone to the north of the Ka'bah, is it part of the Ka'bah? Yes, most of it is part of the Ka'bah, meaning about three meters and a bit of the Ka'bah. What is the stone? The common people say this is the stone of Isma'il, Isma'il ibn Ibrahim. And they claim that the grave of Isma'il is under the spout, and this is not correct, neither that his grave is under the spout nor that it is the stone of Isma'il. The reason for this stone is that Quraysh built the Ka'bah and wanted to build the Ka'bah only with dirhams, only with lawful expenditure, with nothing of riba or anything else, only the lawful. So their funds fell short, meaning the funds were not sufficient to build the Ka'bah on the foundations of Ibrahim. So they said, we must exclude a part of it. Which part should be excluded? They said the northern side, because the southern side has the Black Stone, and the reduction cannot be from that side. So the reduction was from the northern side. And for this reason, you will find that the Prophet (peace and blessings be upon him) did not touch the Syrian corner or the Western corner, because they are not on the foundations of Ibrahim. And he touched the Black Stone and the Yemeni corner, because they are on the foundations of Ibrahim.
So al-Hatim, the stone, is called a stone because Quraysh separated it from the Ka'bah when their funds fell short, so they demolished this side of it. For this reason, it is called al-Hajar (the stone) and also al-Hatim. Most of it is part of the Ka'bah. So whoever prays in it from the side that is part of the Ka'bah, it is as if he prayed inside the Ka'bah.

The questioner : May Allah reward you. He saysThe questioner : It is known that faith...

The Shaykh : Now, my brothers, we are watching the pilgrims and visitors rubbing everything, the corners and the sides. Are they correct?
No, they are not correct. For this reason, when Abdullah ibn Abbas (may Allah be pleased with him) saw Mu'awiyah ibn Abi Sufyan (may Allah be pleased with him) circumambulating the Ka'bah and rubbing all four corners, he rebuked him and said, why are you rubbing all the corners?
Mu'awiyah answered and said: meaning, we rub the four corners so that we do not neglect any of them. This is an analogy, but it is against the text. So Ibn Abbas said to him: . He said: . And he left rubbing the Syrian corner and the Western corner, because the Companions (may Allah be pleased with them) were standing by the limits of Allah. Yes.