عَنْ أَبِي هُرَيْرَةَ، - رضى الله عنه - عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ مَنْ أَدْرَكَ رَكْعَتَيْنِ مِنْ صَلاَةِ الْعَصْرِ قَبْلَ أَنْ تَغْرُبَ الشَّمْسُ أَوْ رَكْعَةً مِنْ صَلاَةِ الصُّبْحِ قَبْلَ أَنْ تَطْلُعَ الشَّمْسُ فَقَدْ أَدْرَكَ ‏"‏ ‏.‏

It was narrated from Abu Hurairah, may Allah be pleased with him, that the Prophet (ﷺ) said: "Whoever catches up with two Rak'ahs of 'Asr prayer before the sun sets, or one Rak'ah of the Subh prayer before the sun rises, has caught it."

Sunan an-#Nasa'i 514
Chapter 11: Whoever Catches Two Rak'ahs Of 'Asr Prayer, Book 6: The Book of the Times (of Prayer)
Grade: Sahih (Darussalam)