It is narrated from Hazrat Imran bin Husain (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) was on a journey. At night, they camped at a place, and at the time of Fajr prayer, everyone remained asleep and only woke up when the sun had already risen. When the sun had risen high, the Prophet (peace and blessings be upon him) ordered a man, and he gave the call to prayer (adhan), and the people offered the two Sunnah units, then they performed the obligatory prayer.