It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "In comparison to the previous nations, your period is only as much as the time between the Asr prayer and sunset."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5911
Hadith Gradingحکم دارالسلام:حديث صحيح، مؤمل - وإن كان سيئ الحفظ - قد توبع.