Exiting ihram after the tawaf

If he does tawaf of the House, then he has exited ihram. I said, "On what basis did Ibn Abbas say this?" He said, "From the saying of Allah ﷻ, "Then their exit from ihram is at the Ancient House", and from the Prophet's ﷺ command to his companions to exit ihram during the Farewell Pilgrimage." I said, "That was only after Arafat." He said, "Ibn Abbas used to hold that view before and after."

إِذَا طَافَ بِالْبَيْتِ فَقَدْ حَلَّ. فَقُلْتُ: مِنْ أَيْنَ قَالَ هَذَا ابْنُ عَبَّاسٍ؟ قَالَ: مِنْ قَوْلِ اللَّهِ ﷻ ﴿ثُمَّ مَحِلُّهَا إِلَى الْبَيْتِ الْعَتِيقِ﴾، وَمِنْ أَمْرِ النَّبِيِّ ﷺ أَصْحَابَهُ أَنْ يَحِلُّوا فِي حَجَّةِ الْوَدَاعِ. قُلْتُ: إِنَّمَا كَانَ ذَلِكَ بَعْدَ الْمُعَرَّفِ. قَالَ: كَانَ ابْنُ عَبَّاسٍ يَرَاهُ قَبْلُ وَبَعْدُ.