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It was narrated that ‘Ali (رضي الله عنه) said: We were with the Prophet (ﷺ) when `Ammar came and asked for permission to enter. He said: “Let him in, welcome to the good one and purified one.`
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنْ هَانِئِ بْنِ هَانِئٍ، عَنْ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ قَالَ كُنَّا جُلُوسًا عِنْدَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَجَاءَهُ عَمَّارٌ فَاسْتَأْذَنَ فَقَالَ ائْذَنُوا لَهُ مَرْحَبًا بِالطَّيِّبِ الْمُطَيَّبِ.
sunnah.com