It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Do not delay your prayers until the time of the rising and the setting of the sun, for it rises between the two horns of the devil."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4379