Sunan Ibn Majah 30719
In-book no 886حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنْ عَاصِمٍ، عَنْ عَبْدِ اللَّهِ بْنِ سَرْجِسَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ رَأَى رَجُلاً يُصَلِّي الرَّكْعَتَيْنِ قَبْلَ صَلاَةِ الْغَدَاةِ وَهُوَ فِي الصَّلاَةِ فَلَمَّا صَلَّى قَالَ لَهُ: " بِأَىِّ صَلاَتَيْكَ اعْتَدَدْتَ؟ " .
It was narrated from ‘Abdullah bin Sarjis that the Messenger of Allah (ﷺ) saw a man performing the two Rak’ah before the morning prayer while he himself was performing prayer. When he had finished praying he said to him: “Which of your two prayers did you intend to be counted (i.e., accepted)?”