It was narrated that Umm Salamah said:
"The Messenger of Allah (ﷺ) got distracted and did not pray the two Rak'ahs before 'Asr so he prayed them after 'Asr." (TR)
English reference (TR): Vol. 1, Book 6, Hadith 581 (TR)
Arabic reference (TR): Book 6, Hadith 587 (TR)