Changing the Intention of Hajj from Ifrad to Tamattu'

Question:
Is it permissible to change the intention of Hajj from ifrad to tamattu', given that he has performed the arrival tawaf, spent the night in Mina, and completed his Hajj as an ifrad, and now he wants his Hajj to be tamattu'?

Answer:
If he entered the state of ihram for Hajj, performed tawaf and sa'y, and then it occurred to him to make it 'Umrah, there is no harm in that. He should shorten his hair and intend it as 'Umrah, then pronounce the talbiyah for Hajj. The Companions came with the intention of Hajj, so he made it 'Umrah, they shortened their hair and exited the state of ihram, then they pronounced the talbiyah for Hajj on the eighth day. This is the case of the one who came on the eighth day, performed tawaf and sa'y, did not shorten his hair, and then wanted to make it 'Umrah. There is no harm in that. He should shorten his hair and make it 'Umrah, and pronounce the talbiyah for Hajj, even on the night of 'Arafah or the morning of 'Arafah. Yes.