Shaykh Ibn 'Uthaymeen (may Allaah have Mercy on him) explains three easy ways you can use to distinguish between the two early lights of dawn. The true Fajr marks the entrance of prayer time and the beginning of the fast. The false Fajr has no ruling associated with it. Knowing these distinctions is important.

Translated and explained by Moosaa Richardson at the Jaami' as-Saalimiyyah Mosque in Jeddah, Saudi Arabia, during class #10 of the series, "Quranic Verses About Fasting," available here on 1MM's Spreaker channel.