"Whoever catches up with one Rak'ah of 'Asr prayer before the sun sets, or catches up with one Rak'ah of Fajr before the sun rises, has caught it." (Using translation from Nasāʾī 515)
عَنِ النَّبِيِّ ﷺ قَالَ «مَنْ أَدْرَكَ رَكْعَةً مِنْ صَلَاةِ الْعَصْرِ قَبْلَ أَنْ تَغِيبَ الشَّمْسُ أَوْ أَدْرَكَ رَكْعَةً مِنَ الْفَجْرِ قَبْلَ طُلُوعِ الشَّمْسِ فَقَدْ أَدْرَكَ»