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Ibn ‘Abbas said that when ‘Ali came out after visiting the Prophet (ﷺ) during the painful illness of which he died, the people asked, “How is God's messenger this morning, Abul Hasan?” He replied, “Praise be to God, he is getting better.” Bukhari transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: إِنَّ عَلِيًّا خَرَجَ مِنْ عِنْدِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي وَجَعِهِ الَّذِي تُوُفِّيَ فِيهِ فَقَالَ النَّاسُ: يَا أَبَا الْحَسَنِ كَيْفَ أَصْبَحَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ؟ قَالَ: أَصْبَحَ بِحَمْدِ الله بارئا. رَوَاهُ البُخَارِيّ
sunnah.com