It wasnarrated that Abu Hurairah said:
"The Messenger of Allah (ﷺ)said: 'Whoever catches one Rak'ah of prayer, he has caught it.'" (JA)
English reference (JA): Vol. 1, Book 5, Hadith 1122 (JA)
Arabic reference (JA): Book 5, Hadith 1176 (JA)