It is narrated from Hazrat Ibn Abbas (may Allah be pleased with him) on the authority of Hazrat Abu Hurairah (may Allah be pleased with him) that the Holy Prophet (peace and blessings of Allah be upon him) said: Whoever catches one rak'ah of the Asr prayer before sunset has caught that prayer, and whoever catches one rak'ah of the Fajr prayer before sunrise has caught that prayer.