عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((مَنْ أَدْرَكَ مِنَ الصَّلَاةِ رَكْعَةً فَقَدْ أَدْرَكَهَا كُلَّهَا))
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever catches one rak‘ah of the prayer, indeed he has caught the whole prayer.