Hadithcore
Al-Adab Al-Mufrad, 798
sahih· Al-Albani

Habib ibn Sabhan al-Asadi said, "I saw 'Ammar praying the obligatory prayer. Then he said to a man at his side, 'O person!' Then he got up."

حَدَّثَنَا قُتَيْبَةُ، قَالَ‏:‏ حَدَّثَنَا جَرِيرٌ، عَنِ الأَعْمَشِ، عَنْ حَبِيبِ بْنِ صُهْبَانَ الأَسَدِيِّ‏:‏ رَأَيْتُ عَمَّارًا صَلَّى الْمَكْتُوبَةَ ثُمَّ قَالَ لِرَجُلٍ إِلَى جَنْبِهِ‏:‏ يَا هَنَاهْ، ثُمَّ قَامَ‏.‏

References2 variants
In-Book Reference
Book 33, Hadith 45
English Reference
Book 33, Hadith 798