Hadithcore
Jami` at-Tirmidhi, 518
sahih· Darussalam

Anas narrated:

"I saw the Prophet, after the Iqamah was called for Salat, talking to a man who was standing between him and the Qiblah, he did not stop talking, and I saw some of them getting sleepy from his lengthy standing the Prophet."

حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْخَلاَّلُ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، قَالَ لَقَدْ رَأَيْتُ النَّبِيَّ صلى الله عليه وسلم بَعْدَ مَا تُقَامُ الصَّلاَةُ يُكَلِّمُهُ الرَّجُلُ يَقُومُ بَيْنَهُ وَبَيْنَ الْقِبْلَةِ فَمَا يَزَالُ يُكَلِّمُهُ فَلَقَدْ رَأَيْتُ بَعْضَنَا يَنْعَسُ مِنْ طُولِ قِيَامِ النَّبِيِّ صلى الله عليه وسلم لَهُ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏

References2 variants
In-Book Reference
Book 4, Hadith 31
English Reference
Vol. 1, Book 4, Hadith 518